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Finding the Fourth Proportional to 221,728.20, 332,592.30 and 150,869.40

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Solution

The fourth proportional to 221,728.20, 332,592.30 and 150,869.40 is: 226,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,728.20 : 332,592.30 = 150,869.40 : x
  2. Step 2: Convert to fraction form
    221,728.20/332,592.30 = 150,869.40/x
  3. Step 3: Cross multiply
    221,728.20x = 332,592.30 × 150,869.40
  4. Step 4: Simplify right side
    221,728.20x = 50,178,000,745.62
  5. Step 5: Solve for x
    x = 50,178,000,745.62/221,728.20
  6. Step 6: Final answer
    x = 226,304.10

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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.