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Finding the Fourth Proportional to 220,606.80, 331,311.15 and 132,033.30

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Solution

The fourth proportional to 220,606.80, 331,311.15 and 132,033.30 is: 198,289.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,606.80 : 331,311.15 = 132,033.30 : x
  2. Step 2: Convert to fraction form
    220,606.80/331,311.15 = 132,033.30/x
  3. Step 3: Cross multiply
    220,606.80x = 331,311.15 × 132,033.30
  4. Step 4: Simplify right side
    220,606.80x = 43,744,104,461.30
  5. Step 5: Solve for x
    x = 43,744,104,461.30/220,606.80
  6. Step 6: Final answer
    x = 198,289.92

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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.