Solve for x_100
x_{100} = \frac{10000000}{21} = 476190\frac{10}{21} \approx 476190.476190476
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x_{100}=\frac{500000}{1.05}
Divide both sides by 1.05.
x_{100}=\frac{50000000}{105}
Expand \frac{500000}{1.05} by multiplying both numerator and the denominator by 100.
x_{100}=\frac{10000000}{21}
Reduce the fraction \frac{50000000}{105} to lowest terms by extracting and canceling out 5.
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