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Finding the Fourth Proportional to 178,342.45, 267,435.88 and 67,456.69

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Solution

The fourth proportional to 178,342.45, 267,435.88 and 67,456.69 is: 101,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,342.45 : 267,435.88 = 67,456.69 : x
  2. Step 2: Convert to fraction form
    178,342.45/267,435.88 = 67,456.69/x
  3. Step 3: Cross multiply
    178,342.45x = 267,435.88 × 67,456.69
  4. Step 4: Simplify right side
    178,342.45x = 18,040,338,414.81
  5. Step 5: Solve for x
    x = 18,040,338,414.81/178,342.45
  6. Step 6: Final answer
    x = 101,155.61

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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.