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Finding the Fourth Proportional to 217,553.54, 326,329.31 and 67,793.94

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Solution

The fourth proportional to 217,553.54, 326,329.31 and 67,793.94 is: 101,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,553.54 : 326,329.31 = 67,793.94 : x
  2. Step 2: Convert to fraction form
    217,553.54/326,329.31 = 67,793.94/x
  3. Step 3: Cross multiply
    217,553.54x = 326,329.31 × 67,793.94
  4. Step 4: Simplify right side
    217,553.54x = 22,123,149,831.87
  5. Step 5: Solve for x
    x = 22,123,149,831.87/217,553.54
  6. Step 6: Final answer
    x = 101,690.60

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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.