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Finding the Fourth Proportional to 275,111.73, 379,721.66 and 167,740.92

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Solution

The fourth proportional to 275,111.73, 379,721.66 and 167,740.92 is: 231,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,111.73 : 379,721.66 = 167,740.92 : x
  2. Step 2: Convert to fraction form
    275,111.73/379,721.66 = 167,740.92/x
  3. Step 3: Cross multiply
    275,111.73x = 379,721.66 × 167,740.92
  4. Step 4: Simplify right side
    275,111.73x = 63,694,859,753.62
  5. Step 5: Solve for x
    x = 63,694,859,753.62/275,111.73
  6. Step 6: Final answer
    x = 231,523.61

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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.