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Finding the Fourth Proportional to 172,278.38, 237,744.17 and 96,826.88

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Solution

The fourth proportional to 172,278.38, 237,744.17 and 96,826.88 is: 133,621.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,278.38 : 237,744.17 = 96,826.88 : x
  2. Step 2: Convert to fraction form
    172,278.38/237,744.17 = 96,826.88/x
  3. Step 3: Cross multiply
    172,278.38x = 237,744.17 × 96,826.88
  4. Step 4: Simplify right side
    172,278.38x = 23,020,024,546.43
  5. Step 5: Solve for x
    x = 23,020,024,546.43/172,278.38
  6. Step 6: Final answer
    x = 133,621.09

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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.