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Finding the Fourth Proportional to 125,220.60, 188,025.30 and 72,732.60

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Solution

The fourth proportional to 125,220.60, 188,025.30 and 72,732.60 is: 109,211.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,220.60 : 188,025.30 = 72,732.60 : x
  2. Step 2: Convert to fraction form
    125,220.60/188,025.30 = 72,732.60/x
  3. Step 3: Cross multiply
    125,220.60x = 188,025.30 × 72,732.60
  4. Step 4: Simplify right side
    125,220.60x = 13,675,568,934.78
  5. Step 5: Solve for x
    x = 13,675,568,934.78/125,220.60
  6. Step 6: Final answer
    x = 109,211.81

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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.