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Finding the Fourth Proportional to 178,219.61, 267,747.45 and 168,131.87

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Solution

The fourth proportional to 178,219.61, 267,747.45 and 168,131.87 is: 252,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,219.61 : 267,747.45 = 168,131.87 : x
  2. Step 2: Convert to fraction form
    178,219.61/267,747.45 = 168,131.87/x
  3. Step 3: Cross multiply
    178,219.61x = 267,747.45 × 168,131.87
  4. Step 4: Simplify right side
    178,219.61x = 45,016,879,456.23
  5. Step 5: Solve for x
    x = 45,016,879,456.23/178,219.61
  6. Step 6: Final answer
    x = 252,592.18

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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.