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Finding the Fourth Proportional to 178,358.10, 267,537.15 and 73,122.90

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Solution

The fourth proportional to 178,358.10, 267,537.15 and 73,122.90 is: 109,684.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,358.10 : 267,537.15 = 73,122.90 : x
  2. Step 2: Convert to fraction form
    178,358.10/267,537.15 = 73,122.90/x
  3. Step 3: Cross multiply
    178,358.10x = 267,537.15 × 73,122.90
  4. Step 4: Simplify right side
    178,358.10x = 19,563,092,265.74
  5. Step 5: Solve for x
    x = 19,563,092,265.74/178,358.10
  6. Step 6: Final answer
    x = 109,684.35

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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.