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Finding the Fourth Proportional to 75,882.80, 113,600.03 and 72,635.11

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Solution

The fourth proportional to 75,882.80, 113,600.03 and 72,635.11 is: 108,738.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,882.80 : 113,600.03 = 72,635.11 : x
  2. Step 2: Convert to fraction form
    75,882.80/113,600.03 = 72,635.11/x
  3. Step 3: Cross multiply
    75,882.80x = 113,600.03 × 72,635.11
  4. Step 4: Simplify right side
    75,882.80x = 8,251,350,027.88
  5. Step 5: Solve for x
    x = 8,251,350,027.88/75,882.80
  6. Step 6: Final answer
    x = 108,738.08

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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.