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Finding the Fourth Proportional to 441,542.46, 662,319.76 and 125,999.30

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Solution

The fourth proportional to 441,542.46, 662,319.76 and 125,999.30 is: 189,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,542.46 : 662,319.76 = 125,999.30 : x
  2. Step 2: Convert to fraction form
    441,542.46/662,319.76 = 125,999.30/x
  3. Step 3: Cross multiply
    441,542.46x = 662,319.76 × 125,999.30
  4. Step 4: Simplify right side
    441,542.46x = 83,451,826,136.17
  5. Step 5: Solve for x
    x = 83,451,826,136.17/441,542.46
  6. Step 6: Final answer
    x = 189,000.68

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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.