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Finding the Fourth Proportional to 67,132.50, 100,713.42 and 25,579.50

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Solution

The fourth proportional to 67,132.50, 100,713.42 and 25,579.50 is: 38,374.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,132.50 : 100,713.42 = 25,579.50 : x
  2. Step 2: Convert to fraction form
    67,132.50/100,713.42 = 25,579.50/x
  3. Step 3: Cross multiply
    67,132.50x = 100,713.42 × 25,579.50
  4. Step 4: Simplify right side
    67,132.50x = 2,576,198,926.89
  5. Step 5: Solve for x
    x = 2,576,198,926.89/67,132.50
  6. Step 6: Final answer
    x = 38,374.84

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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.