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Finding the Fourth Proportional to 221,738.20, 332,607.30 and 150,879.40

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Solution

The fourth proportional to 221,738.20, 332,607.30 and 150,879.40 is: 226,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,738.20 : 332,607.30 = 150,879.40 : x
  2. Step 2: Convert to fraction form
    221,738.20/332,607.30 = 150,879.40/x
  3. Step 3: Cross multiply
    221,738.20x = 332,607.30 × 150,879.40
  4. Step 4: Simplify right side
    221,738.20x = 50,183,589,859.62
  5. Step 5: Solve for x
    x = 50,183,589,859.62/221,738.20
  6. Step 6: Final answer
    x = 226,319.10

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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.