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Finding the Fourth Proportional to 61,198.47, 91,734.55 and 25,680.42

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Solution

The fourth proportional to 61,198.47, 91,734.55 and 25,680.42 is: 38,494.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,198.47 : 91,734.55 = 25,680.42 : x
  2. Step 2: Convert to fraction form
    61,198.47/91,734.55 = 25,680.42/x
  3. Step 3: Cross multiply
    61,198.47x = 91,734.55 × 25,680.42
  4. Step 4: Simplify right side
    61,198.47x = 2,355,781,594.76
  5. Step 5: Solve for x
    x = 2,355,781,594.76/61,198.47
  6. Step 6: Final answer
    x = 38,494.12

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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.