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Finding the Fourth Proportional to 74,951.59, 112,394.44 and 39,882.91

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Solution

The fourth proportional to 74,951.59, 112,394.44 and 39,882.91 is: 59,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951.59 : 112,394.44 = 39,882.91 : x
  2. Step 2: Convert to fraction form
    74,951.59/112,394.44 = 39,882.91/x
  3. Step 3: Cross multiply
    74,951.59x = 112,394.44 × 39,882.91
  4. Step 4: Simplify right side
    74,951.59x = 4,482,617,335.02
  5. Step 5: Solve for x
    x = 4,482,617,335.02/74,951.59
  6. Step 6: Final answer
    x = 59,806.83

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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.