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Finding the Fourth Proportional to 178,129.88, 267,169.96 and 45,001.88

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Solution

The fourth proportional to 178,129.88, 267,169.96 and 45,001.88 is: 67,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,129.88 : 267,169.96 = 45,001.88 : x
  2. Step 2: Convert to fraction form
    178,129.88/267,169.96 = 45,001.88/x
  3. Step 3: Cross multiply
    178,129.88x = 267,169.96 × 45,001.88
  4. Step 4: Simplify right side
    178,129.88x = 12,023,150,479.52
  5. Step 5: Solve for x
    x = 12,023,150,479.52/178,129.88
  6. Step 6: Final answer
    x = 67,496.54

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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.