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Finding the Fourth Proportional to 91,960.88, 137,930.88 and 25,410.44

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Solution

The fourth proportional to 91,960.88, 137,930.88 and 25,410.44 is: 38,112.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,960.88 : 137,930.88 = 25,410.44 : x
  2. Step 2: Convert to fraction form
    91,960.88/137,930.88 = 25,410.44/x
  3. Step 3: Cross multiply
    91,960.88x = 137,930.88 × 25,410.44
  4. Step 4: Simplify right side
    91,960.88x = 3,504,884,350.39
  5. Step 5: Solve for x
    x = 3,504,884,350.39/91,960.88
  6. Step 6: Final answer
    x = 38,112.78

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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.