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Finding the Fourth Proportional to 71,882.97, 107,660.43 and 63,473.96

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Solution

The fourth proportional to 71,882.97, 107,660.43 and 63,473.96 is: 95,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,882.97 : 107,660.43 = 63,473.96 : x
  2. Step 2: Convert to fraction form
    71,882.97/107,660.43 = 63,473.96/x
  3. Step 3: Cross multiply
    71,882.97x = 107,660.43 × 63,473.96
  4. Step 4: Simplify right side
    71,882.97x = 6,833,633,289.10
  5. Step 5: Solve for x
    x = 6,833,633,289.10/71,882.97
  6. Step 6: Final answer
    x = 95,066.10

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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.