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Finding the Fourth Proportional to 178,391.36, 267,062.15 and 119,079.92

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Solution

The fourth proportional to 178,391.36, 267,062.15 and 119,079.92 is: 178,269.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,391.36 : 267,062.15 = 119,079.92 : x
  2. Step 2: Convert to fraction form
    178,391.36/267,062.15 = 119,079.92/x
  3. Step 3: Cross multiply
    178,391.36x = 267,062.15 × 119,079.92
  4. Step 4: Simplify right side
    178,391.36x = 31,801,740,422.38
  5. Step 5: Solve for x
    x = 31,801,740,422.38/178,391.36
  6. Step 6: Final answer
    x = 178,269.51

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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.