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Finding the Fourth Proportional to 59,659.20, 89,546.40 and 36,331.20

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Solution

The fourth proportional to 59,659.20, 89,546.40 and 36,331.20 is: 54,531.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,659.20 : 89,546.40 = 36,331.20 : x
  2. Step 2: Convert to fraction form
    59,659.20/89,546.40 = 36,331.20/x
  3. Step 3: Cross multiply
    59,659.20x = 89,546.40 × 36,331.20
  4. Step 4: Simplify right side
    59,659.20x = 3,253,328,167.68
  5. Step 5: Solve for x
    x = 3,253,328,167.68/59,659.20
  6. Step 6: Final answer
    x = 54,531.88

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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.