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Finding the Fourth Proportional to 104,414.20, 156,621.30 and 25,529.20

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Solution

The fourth proportional to 104,414.20, 156,621.30 and 25,529.20 is: 38,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,414.20 : 156,621.30 = 25,529.20 : x
  2. Step 2: Convert to fraction form
    104,414.20/156,621.30 = 25,529.20/x
  3. Step 3: Cross multiply
    104,414.20x = 156,621.30 × 25,529.20
  4. Step 4: Simplify right side
    104,414.20x = 3,998,416,491.96
  5. Step 5: Solve for x
    x = 3,998,416,491.96/104,414.20
  6. Step 6: Final answer
    x = 38,293.80

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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.