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Finding the Fourth Proportional to 71,680.95, 107,517.98 and 29,560.34

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Solution

The fourth proportional to 71,680.95, 107,517.98 and 29,560.34 is: 44,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,680.95 : 107,517.98 = 29,560.34 : x
  2. Step 2: Convert to fraction form
    71,680.95/107,517.98 = 29,560.34/x
  3. Step 3: Cross multiply
    71,680.95x = 107,517.98 × 29,560.34
  4. Step 4: Simplify right side
    71,680.95x = 3,178,268,387.61
  5. Step 5: Solve for x
    x = 3,178,268,387.61/71,680.95
  6. Step 6: Final answer
    x = 44,339.09

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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.