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Finding the Fourth Proportional to 104,015.52, 156,023.68 and 25,129.62

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Solution

The fourth proportional to 104,015.52, 156,023.68 and 25,129.62 is: 37,694.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,015.52 : 156,023.68 = 25,129.62 : x
  2. Step 2: Convert to fraction form
    104,015.52/156,023.68 = 25,129.62/x
  3. Step 3: Cross multiply
    104,015.52x = 156,023.68 × 25,129.62
  4. Step 4: Simplify right side
    104,015.52x = 3,920,815,789.40
  5. Step 5: Solve for x
    x = 3,920,815,789.40/104,015.52
  6. Step 6: Final answer
    x = 37,694.53

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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.