\( 1.1 = 11/10 \), so \( r = 11/10 \)
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- \( S = x \frac{1 - 1.1^5}{1 - 1.1} = x \frac{1 - 1.61051}{-0.1} = x \frac{-0.61051}{-0.1} = x \times 6.1051 \)
- \( x = 240 / 6.1051 \approx 39.32 \)
- #### 39.32
- \( r^5 = (11/10)^5 = 161051 / 100000 = 1.61051 \)
- \( x = 240 / 6.1051 ≈ 39.32 \)
- \( x + 1.1x + 1.21x + 1.331x + 1.4641x = x(1 + 1.1 + 1.21 + 1.331 + 1.4641) = x(6.1051) = 240 \)
