Solve for x_100
x_{100} = \frac{100000}{21} = 4761\frac{19}{21} \approx 4761.904761905
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x_{100}=\frac{500000}{105}
Divide both sides by 105.
x_{100}=\frac{100000}{21}
Reduce the fraction \frac{500000}{105} to lowest terms by extracting and canceling out 5.
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