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Finding the Fourth Proportional to 231,487.56, 347,264.61 and 71,575.95

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Solution

The fourth proportional to 231,487.56, 347,264.61 and 71,575.95 is: 107,374.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,487.56 : 347,264.61 = 71,575.95 : x
  2. Step 2: Convert to fraction form
    231,487.56/347,264.61 = 71,575.95/x
  3. Step 3: Cross multiply
    231,487.56x = 347,264.61 × 71,575.95
  4. Step 4: Simplify right side
    231,487.56x = 24,855,794,362.13
  5. Step 5: Solve for x
    x = 24,855,794,362.13/231,487.56
  6. Step 6: Final answer
    x = 107,374.21

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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.