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Finding the Fourth Proportional to 125,403.50, 188,025.24 and 82,659.57

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Solution

The fourth proportional to 125,403.50, 188,025.24 and 82,659.57 is: 123,936.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,403.50 : 188,025.24 = 82,659.57 : x
  2. Step 2: Convert to fraction form
    125,403.50/188,025.24 = 82,659.57/x
  3. Step 3: Cross multiply
    125,403.50x = 188,025.24 × 82,659.57
  4. Step 4: Simplify right side
    125,403.50x = 15,542,085,487.55
  5. Step 5: Solve for x
    x = 15,542,085,487.55/125,403.50
  6. Step 6: Final answer
    x = 123,936.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.