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Finding the Fourth Proportional to 71,505.75, 107,253.90 and 29,374.83

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Solution

The fourth proportional to 71,505.75, 107,253.90 and 29,374.83 is: 44,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,505.75 : 107,253.90 = 29,374.83 : x
  2. Step 2: Convert to fraction form
    71,505.75/107,253.90 = 29,374.83/x
  3. Step 3: Cross multiply
    71,505.75x = 107,253.90 × 29,374.83
  4. Step 4: Simplify right side
    71,505.75x = 3,150,565,079.34
  5. Step 5: Solve for x
    x = 3,150,565,079.34/71,505.75
  6. Step 6: Final answer
    x = 44,060.30

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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.