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Finding the Fourth Proportional to 225,843.11, 338,707.94 and 92,760.11

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Solution

The fourth proportional to 225,843.11, 338,707.94 and 92,760.11 is: 139,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,843.11 : 338,707.94 = 92,760.11 : x
  2. Step 2: Convert to fraction form
    225,843.11/338,707.94 = 92,760.11/x
  3. Step 3: Cross multiply
    225,843.11x = 338,707.94 × 92,760.11
  4. Step 4: Simplify right side
    225,843.11x = 31,418,584,078.73
  5. Step 5: Solve for x
    x = 31,418,584,078.73/225,843.11
  6. Step 6: Final answer
    x = 139,116.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.