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Finding the Fourth Proportional to 72,449.60, 108,679.24 and 25,069.44

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Solution

The fourth proportional to 72,449.60, 108,679.24 and 25,069.44 is: 37,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,449.60 : 108,679.24 = 25,069.44 : x
  2. Step 2: Convert to fraction form
    72,449.60/108,679.24 = 25,069.44/x
  3. Step 3: Cross multiply
    72,449.60x = 108,679.24 × 25,069.44
  4. Step 4: Simplify right side
    72,449.60x = 2,724,527,686.43
  5. Step 5: Solve for x
    x = 2,724,527,686.43/72,449.60
  6. Step 6: Final answer
    x = 37,605.83

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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.