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Finding the Fourth Proportional to 83,755.68, 125,633.61 and 39,349.86

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Solution

The fourth proportional to 83,755.68, 125,633.61 and 39,349.86 is: 59,024.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,755.68 : 125,633.61 = 39,349.86 : x
  2. Step 2: Convert to fraction form
    83,755.68/125,633.61 = 39,349.86/x
  3. Step 3: Cross multiply
    83,755.68x = 125,633.61 × 39,349.86
  4. Step 4: Simplify right side
    83,755.68x = 4,943,664,964.79
  5. Step 5: Solve for x
    x = 4,943,664,964.79/83,755.68
  6. Step 6: Final answer
    x = 59,024.83

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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.