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Finding the Fourth Proportional to 440,517.76, 660,878.52 and 156,193.24

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Solution

The fourth proportional to 440,517.76, 660,878.52 and 156,193.24 is: 234,325.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,517.76 : 660,878.52 = 156,193.24 : x
  2. Step 2: Convert to fraction form
    440,517.76/660,878.52 = 156,193.24/x
  3. Step 3: Cross multiply
    440,517.76x = 660,878.52 × 156,193.24
  4. Step 4: Simplify right side
    440,517.76x = 103,224,757,285.21
  5. Step 5: Solve for x
    x = 103,224,757,285.21/440,517.76
  6. Step 6: Final answer
    x = 234,325.98

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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.