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Finding the Fourth Proportional to 68,791.20, 96,110.85 and 68,791.20

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Solution

The fourth proportional to 68,791.20, 96,110.85 and 68,791.20 is: 96,110.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,791.20 : 96,110.85 = 68,791.20 : x
  2. Step 2: Convert to fraction form
    68,791.20/96,110.85 = 68,791.20/x
  3. Step 3: Cross multiply
    68,791.20x = 96,110.85 × 68,791.20
  4. Step 4: Simplify right side
    68,791.20x = 6,611,580,704.52
  5. Step 5: Solve for x
    x = 6,611,580,704.52/68,791.20
  6. Step 6: Final answer
    x = 96,110.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.