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Finding the Fourth Proportional to 68,793.97, 103,190.97 and 45,414.94

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Solution

The fourth proportional to 68,793.97, 103,190.97 and 45,414.94 is: 68,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.97 : 103,190.97 = 45,414.94 : x
  2. Step 2: Convert to fraction form
    68,793.97/103,190.97 = 45,414.94/x
  3. Step 3: Cross multiply
    68,793.97x = 103,190.97 × 45,414.94
  4. Step 4: Simplify right side
    68,793.97x = 4,686,411,711.09
  5. Step 5: Solve for x
    x = 4,686,411,711.09/68,793.97
  6. Step 6: Final answer
    x = 68,122.42

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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.