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Finding the Fourth Proportional to 221,718.70, 332,578.05 and 150,859.90

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Solution

The fourth proportional to 221,718.70, 332,578.05 and 150,859.90 is: 226,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,718.70 : 332,578.05 = 150,859.90 : x
  2. Step 2: Convert to fraction form
    221,718.70/332,578.05 = 150,859.90/x
  3. Step 3: Cross multiply
    221,718.70x = 332,578.05 × 150,859.90
  4. Step 4: Simplify right side
    221,718.70x = 50,172,691,365.20
  5. Step 5: Solve for x
    x = 50,172,691,365.20/221,718.70
  6. Step 6: Final answer
    x = 226,289.85

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1.5x scale

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.