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Finding the Fourth Proportional to 66,793.20, 100,228.64 and 25,243.44

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Solution

The fourth proportional to 66,793.20, 100,228.64 and 25,243.44 is: 37,879.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,793.20 : 100,228.64 = 25,243.44 : x
  2. Step 2: Convert to fraction form
    66,793.20/100,228.64 = 25,243.44/x
  3. Step 3: Cross multiply
    66,793.20x = 100,228.64 × 25,243.44
  4. Step 4: Simplify right side
    66,793.20x = 2,530,115,660.12
  5. Step 5: Solve for x
    x = 2,530,115,660.12/66,793.20
  6. Step 6: Final answer
    x = 37,879.84

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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.