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Finding the Fourth Proportional to 308,553.29, 425,842.98 and 172,594.79

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Solution

The fourth proportional to 308,553.29, 425,842.98 and 172,594.79 is: 238,202.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,553.29 : 425,842.98 = 172,594.79 : x
  2. Step 2: Convert to fraction form
    308,553.29/425,842.98 = 172,594.79/x
  3. Step 3: Cross multiply
    308,553.29x = 425,842.98 × 172,594.79
  4. Step 4: Simplify right side
    308,553.29x = 73,498,279,706.07
  5. Step 5: Solve for x
    x = 73,498,279,706.07/308,553.29
  6. Step 6: Final answer
    x = 238,202.87

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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.