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Finding the Fourth Proportional to 71,372.38, 106,973.52 and 29,250.76

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Solution

The fourth proportional to 71,372.38, 106,973.52 and 29,250.76 is: 43,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,372.38 : 106,973.52 = 29,250.76 : x
  2. Step 2: Convert to fraction form
    71,372.38/106,973.52 = 29,250.76/x
  3. Step 3: Cross multiply
    71,372.38x = 106,973.52 × 29,250.76
  4. Step 4: Simplify right side
    71,372.38x = 3,129,056,759.88
  5. Step 5: Solve for x
    x = 3,129,056,759.88/71,372.38
  6. Step 6: Final answer
    x = 43,841.28

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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.