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Finding the Fourth Proportional to 168,046.78, 231,893.66 and 92,595.28

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Solution

The fourth proportional to 168,046.78, 231,893.66 and 92,595.28 is: 127,775.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,046.78 : 231,893.66 = 92,595.28 : x
  2. Step 2: Convert to fraction form
    168,046.78/231,893.66 = 92,595.28/x
  3. Step 3: Cross multiply
    168,046.78x = 231,893.66 × 92,595.28
  4. Step 4: Simplify right side
    168,046.78x = 21,472,258,377.92
  5. Step 5: Solve for x
    x = 21,472,258,377.92/168,046.78
  6. Step 6: Final answer
    x = 127,775.48

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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.