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Finding the Fourth Proportional to 252,580.12, 378,869.27 and 65,591.62

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Solution

The fourth proportional to 252,580.12, 378,869.27 and 65,591.62 is: 98,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,580.12 : 378,869.27 = 65,591.62 : x
  2. Step 2: Convert to fraction form
    252,580.12/378,869.27 = 65,591.62/x
  3. Step 3: Cross multiply
    252,580.12x = 378,869.27 × 65,591.62
  4. Step 4: Simplify right side
    252,580.12x = 24,850,647,912.39
  5. Step 5: Solve for x
    x = 24,850,647,912.39/252,580.12
  6. Step 6: Final answer
    x = 98,387.19

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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.