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Finding the Fourth Proportional to 221,635.28, 332,375.48 and 63,821.52

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Solution

The fourth proportional to 221,635.28, 332,375.48 and 63,821.52 is: 95,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,635.28 : 332,375.48 = 63,821.52 : x
  2. Step 2: Convert to fraction form
    221,635.28/332,375.48 = 63,821.52/x
  3. Step 3: Cross multiply
    221,635.28x = 332,375.48 × 63,821.52
  4. Step 4: Simplify right side
    221,635.28x = 21,212,708,344.33
  5. Step 5: Solve for x
    x = 21,212,708,344.33/221,635.28
  6. Step 6: Final answer
    x = 95,709.98

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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.