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Finding the Fourth Proportional to 172,310.72, 237,799.68 and 96,864.08

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Solution

The fourth proportional to 172,310.72, 237,799.68 and 96,864.08 is: 133,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,310.72 : 237,799.68 = 96,864.08 : x
  2. Step 2: Convert to fraction form
    172,310.72/237,799.68 = 96,864.08/x
  3. Step 3: Cross multiply
    172,310.72x = 237,799.68 × 96,864.08
  4. Step 4: Simplify right side
    172,310.72x = 23,034,247,227.49
  5. Step 5: Solve for x
    x = 23,034,247,227.49/172,310.72
  6. Step 6: Final answer
    x = 133,678.55

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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.