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Finding the Fourth Proportional to 87,687.20, 131,530.80 and 50,232.80

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Solution

The fourth proportional to 87,687.20, 131,530.80 and 50,232.80 is: 75,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,687.20 : 131,530.80 = 50,232.80 : x
  2. Step 2: Convert to fraction form
    87,687.20/131,530.80 = 50,232.80/x
  3. Step 3: Cross multiply
    87,687.20x = 131,530.80 × 50,232.80
  4. Step 4: Simplify right side
    87,687.20x = 6,607,160,370.24
  5. Step 5: Solve for x
    x = 6,607,160,370.24/87,687.20
  6. Step 6: Final answer
    x = 75,349.20

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