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Finding the Fourth Proportional to 221,416.70, 332,125.05 and 63,635.90

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Solution

The fourth proportional to 221,416.70, 332,125.05 and 63,635.90 is: 95,453.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,416.70 : 332,125.05 = 63,635.90 : x
  2. Step 2: Convert to fraction form
    221,416.70/332,125.05 = 63,635.90/x
  3. Step 3: Cross multiply
    221,416.70x = 332,125.05 × 63,635.90
  4. Step 4: Simplify right side
    221,416.70x = 21,135,076,469.30
  5. Step 5: Solve for x
    x = 21,135,076,469.30/221,416.70
  6. Step 6: Final answer
    x = 95,453.85

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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.