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Finding the Fourth Proportional to 71,706.15, 107,543.85 and 29,575.31

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Solution

The fourth proportional to 71,706.15, 107,543.85 and 29,575.31 is: 44,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,706.15 : 107,543.85 = 29,575.31 : x
  2. Step 2: Convert to fraction form
    71,706.15/107,543.85 = 29,575.31/x
  3. Step 3: Cross multiply
    71,706.15x = 107,543.85 × 29,575.31
  4. Step 4: Simplify right side
    71,706.15x = 3,180,642,164.62
  5. Step 5: Solve for x
    x = 3,180,642,164.62/71,706.15
  6. Step 6: Final answer
    x = 44,356.62

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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.