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Finding the Fourth Proportional to 65,446.98, 90,306.99 and 36,761.15

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Solution

The fourth proportional to 65,446.98, 90,306.99 and 36,761.15 is: 50,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,446.98 : 90,306.99 = 36,761.15 : x
  2. Step 2: Convert to fraction form
    65,446.98/90,306.99 = 36,761.15/x
  3. Step 3: Cross multiply
    65,446.98x = 90,306.99 × 36,761.15
  4. Step 4: Simplify right side
    65,446.98x = 3,319,788,353.90
  5. Step 5: Solve for x
    x = 3,319,788,353.90/65,446.98
  6. Step 6: Final answer
    x = 50,724.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.