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Finding the Fourth Proportional to 172,882.74, 238,672.17 and 119,454.96

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Solution

The fourth proportional to 172,882.74, 238,672.17 and 119,454.96 is: 164,912.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,882.74 : 238,672.17 = 119,454.96 : x
  2. Step 2: Convert to fraction form
    172,882.74/238,672.17 = 119,454.96/x
  3. Step 3: Cross multiply
    172,882.74x = 238,672.17 × 119,454.96
  4. Step 4: Simplify right side
    172,882.74x = 28,510,574,520.46
  5. Step 5: Solve for x
    x = 28,510,574,520.46/172,882.74
  6. Step 6: Final answer
    x = 164,912.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.