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Finding the Fourth Proportional to 413,057.80, 619,601.96 and 113,561.79

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Solution

The fourth proportional to 413,057.80, 619,601.96 and 113,561.79 is: 170,346.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,057.80 : 619,601.96 = 113,561.79 : x
  2. Step 2: Convert to fraction form
    413,057.80/619,601.96 = 113,561.79/x
  3. Step 3: Cross multiply
    413,057.80x = 619,601.96 × 113,561.79
  4. Step 4: Simplify right side
    413,057.80x = 70,363,107,665.11
  5. Step 5: Solve for x
    x = 70,363,107,665.11/413,057.80
  6. Step 6: Final answer
    x = 170,346.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.