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Finding the Fourth Proportional to 168,092.38, 231,964.06 and 92,640.88

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Solution

The fourth proportional to 168,092.38, 231,964.06 and 92,640.88 is: 127,842.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,092.38 : 231,964.06 = 92,640.88 : x
  2. Step 2: Convert to fraction form
    168,092.38/231,964.06 = 92,640.88/x
  3. Step 3: Cross multiply
    168,092.38x = 231,964.06 × 92,640.88
  4. Step 4: Simplify right side
    168,092.38x = 21,489,354,646.77
  5. Step 5: Solve for x
    x = 21,489,354,646.77/168,092.38
  6. Step 6: Final answer
    x = 127,842.53

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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.