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Finding the Fourth Proportional to 67,241.52, 100,830.09 and 39,169.56

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Solution

The fourth proportional to 67,241.52, 100,830.09 and 39,169.56 is: 58,735.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,241.52 : 100,830.09 = 39,169.56 : x
  2. Step 2: Convert to fraction form
    67,241.52/100,830.09 = 39,169.56/x
  3. Step 3: Cross multiply
    67,241.52x = 100,830.09 × 39,169.56
  4. Step 4: Simplify right side
    67,241.52x = 3,949,470,260.06
  5. Step 5: Solve for x
    x = 3,949,470,260.06/67,241.52
  6. Step 6: Final answer
    x = 58,735.59

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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.