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Finding the Fourth Proportional to 221,422.96, 332,132.52 and 63,650.80

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Solution

The fourth proportional to 221,422.96, 332,132.52 and 63,650.80 is: 95,475.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,422.96 : 332,132.52 = 63,650.80 : x
  2. Step 2: Convert to fraction form
    221,422.96/332,132.52 = 63,650.80/x
  3. Step 3: Cross multiply
    221,422.96x = 332,132.52 × 63,650.80
  4. Step 4: Simplify right side
    221,422.96x = 21,140,500,604.02
  5. Step 5: Solve for x
    x = 21,140,500,604.02/221,422.96
  6. Step 6: Final answer
    x = 95,475.65

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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.