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Finding the Fourth Proportional to 225,930.87, 338,659.85 and 76,119.41

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Solution

The fourth proportional to 225,930.87, 338,659.85 and 76,119.41 is: 114,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,930.87 : 338,659.85 = 76,119.41 : x
  2. Step 2: Convert to fraction form
    225,930.87/338,659.85 = 76,119.41/x
  3. Step 3: Cross multiply
    225,930.87x = 338,659.85 × 76,119.41
  4. Step 4: Simplify right side
    225,930.87x = 25,778,585,898.79
  5. Step 5: Solve for x
    x = 25,778,585,898.79/225,930.87
  6. Step 6: Final answer
    x = 114,099.44

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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.