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Finding the Fourth Proportional to 178,129.87, 267,169.96 and 45,001.87

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Solution

The fourth proportional to 178,129.87, 267,169.96 and 45,001.87 is: 67,496.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,129.87 : 267,169.96 = 45,001.87 : x
  2. Step 2: Convert to fraction form
    178,129.87/267,169.96 = 45,001.87/x
  3. Step 3: Cross multiply
    178,129.87x = 267,169.96 × 45,001.87
  4. Step 4: Simplify right side
    178,129.87x = 12,023,147,807.83
  5. Step 5: Solve for x
    x = 12,023,147,807.83/178,129.87
  6. Step 6: Final answer
    x = 67,496.53

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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.