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Finding the Fourth Proportional to 221,452.20, 332,124.30 and 63,664.20

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Solution

The fourth proportional to 221,452.20, 332,124.30 and 63,664.20 is: 95,480.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,452.20 : 332,124.30 = 63,664.20 : x
  2. Step 2: Convert to fraction form
    221,452.20/332,124.30 = 63,664.20/x
  3. Step 3: Cross multiply
    221,452.20x = 332,124.30 × 63,664.20
  4. Step 4: Simplify right side
    221,452.20x = 21,144,427,860.06
  5. Step 5: Solve for x
    x = 21,144,427,860.06/221,452.20
  6. Step 6: Final answer
    x = 95,480.78

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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.