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Finding the Fourth Proportional to 71,520.46, 107,265.99 and 29,359.42

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Solution

The fourth proportional to 71,520.46, 107,265.99 and 29,359.42 is: 44,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,520.46 : 107,265.99 = 29,359.42 : x
  2. Step 2: Convert to fraction form
    71,520.46/107,265.99 = 29,359.42/x
  3. Step 3: Cross multiply
    71,520.46x = 107,265.99 × 29,359.42
  4. Step 4: Simplify right side
    71,520.46x = 3,149,267,252.13
  5. Step 5: Solve for x
    x = 3,149,267,252.13/71,520.46
  6. Step 6: Final answer
    x = 44,033.10

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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.