Math Problem Statement
You borrow $180,000 to be repaid in monthly installments over the next 25 years. The first payment occurs one month from today. If the annualized interest rate for the loan is5.1%, how much principal is amortized in payment #51? Enter your answer as a positive number, and round to the nearest dollar.
Solution
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Math Problem Analysis
Mathematical Concepts
Loan Amortization
Interest Calculation
Principal Amortization
Formulas
M = P × (r(1+r)^n) / ((1+r)^n - 1)
B(t) = P × ((1+r)^n - (1+r)^t) / ((1+r)^n - 1)
Interest at Payment t = r × B(t-1)
Principal Amortized = M - Interest at Payment t
Theorems
Loan Amortization Theorem
Compound Interest Theorem
Suitable Grade Level
College Level / Financial Mathematics
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