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Finding the Fourth Proportional to 225,951.72, 338,955.84 and 68,179.92

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Solution

The fourth proportional to 225,951.72, 338,955.84 and 68,179.92 is: 102,278.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,951.72 : 338,955.84 = 68,179.92 : x
  2. Step 2: Convert to fraction form
    225,951.72/338,955.84 = 68,179.92/x
  3. Step 3: Cross multiply
    225,951.72x = 338,955.84 × 68,179.92
  4. Step 4: Simplify right side
    225,951.72x = 23,109,982,054.73
  5. Step 5: Solve for x
    x = 23,109,982,054.73/225,951.72
  6. Step 6: Final answer
    x = 102,278.41

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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.