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r=0.12550881
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r≔0.12550881
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r=\left(1+\frac{12}{400}\right)^{4}-1
Expand \frac{0.12}{4} by multiplying both numerator and the denominator by 100.
r=\left(1+\frac{3}{100}\right)^{4}-1
Reduce the fraction \frac{12}{400} to lowest terms by extracting and canceling out 4.
r=\left(\frac{103}{100}\right)^{4}-1
Add 1 and \frac{3}{100} to get \frac{103}{100}.
r=\frac{112550881}{100000000}-1
Calculate \frac{103}{100} to the power of 4 and get \frac{112550881}{100000000}.
r=\frac{12550881}{100000000}
Subtract 1 from \frac{112550881}{100000000} to get \frac{12550881}{100000000}.
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