1. **State the problem:**
You have an annuity with a present value (PV) of 50000, and you want to find the payment amount (PMT) for withdrawals every 2 months over 5 years. The interest rate is 5.5% annually, compounded every 2 months.
2. **Identify the formula:**
The present value of an annuity formula is:
$$PV = PMT \times \frac{1 - (1 + i)^{-n}}{i}$$
where:
- $PV$ is the present value,
- $PMT$ is the payment per period,
- $i$ is the interest rate per period,
- $n$ is the total number of payments.
3. **Calculate the values:**
- Annual interest rate = 5.5% = 0.055
- Compounded every 2 months means 6 periods per year.
- Interest rate per period $i = \frac{0.055}{6} = 0.0091667$
- Number of payments $n = 5 \text{ years} \times 6 = 30$
4. **Rearrange the formula to solve for $PMT$:**
$$PMT = PV \times \frac{i}{1 - (1 + i)^{-n}}$$
5. **Substitute the values:**
$$PMT = 50000 \times \frac{0.0091667}{1 - (1 + 0.0091667)^{-30}}$$
6. **Calculate the denominator:**
$$1 + 0.0091667 = 1.0091667$$
$$1.0091667^{-30} = \frac{1}{1.0091667^{30}}$$
Calculate $1.0091667^{30}$:
$$1.0091667^{30} \approx 1.3196$$
So,
$$1.0091667^{-30} \approx \frac{1}{1.3196} = 0.7579$$
7. **Calculate the denominator:**
$$1 - 0.7579 = 0.2421$$
8. **Calculate the payment:**
$$PMT = 50000 \times \frac{0.0091667}{0.2421} = 50000 \times 0.03787 = 1893.50$$
**Final answer:**
The payment amount is **1893.50** per withdrawal every 2 months for 5 years.
Annuity Payment Dd3F38
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