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Finding the Fourth Proportional to 178,542.46, 267,829.40 and 66,223.90

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Solution

The fourth proportional to 178,542.46, 267,829.40 and 66,223.90 is: 99,341.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,542.46 : 267,829.40 = 66,223.90 : x
  2. Step 2: Convert to fraction form
    178,542.46/267,829.40 = 66,223.90/x
  3. Step 3: Cross multiply
    178,542.46x = 267,829.40 × 66,223.90
  4. Step 4: Simplify right side
    178,542.46x = 17,736,707,402.66
  5. Step 5: Solve for x
    x = 17,736,707,402.66/178,542.46
  6. Step 6: Final answer
    x = 99,341.68

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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.