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Finding the Fourth Proportional to 136,604.21, 204,930.96 and 61,759.59

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Solution

The fourth proportional to 136,604.21, 204,930.96 and 61,759.59 is: 92,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,604.21 : 204,930.96 = 61,759.59 : x
  2. Step 2: Convert to fraction form
    136,604.21/204,930.96 = 61,759.59/x
  3. Step 3: Cross multiply
    136,604.21x = 204,930.96 × 61,759.59
  4. Step 4: Simplify right side
    136,604.21x = 12,656,452,067.91
  5. Step 5: Solve for x
    x = 12,656,452,067.91/136,604.21
  6. Step 6: Final answer
    x = 92,650.53

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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.