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Finding the Fourth Proportional to 240,475.20, 360,021.60 and 147,163.20

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Solution

The fourth proportional to 240,475.20, 360,021.60 and 147,163.20 is: 220,321.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,475.20 : 360,021.60 = 147,163.20 : x
  2. Step 2: Convert to fraction form
    240,475.20/360,021.60 = 147,163.20/x
  3. Step 3: Cross multiply
    240,475.20x = 360,021.60 × 147,163.20
  4. Step 4: Simplify right side
    240,475.20x = 52,981,930,725.12
  5. Step 5: Solve for x
    x = 52,981,930,725.12/240,475.20
  6. Step 6: Final answer
    x = 220,321.81

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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.