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Finding the Fourth Proportional to 68,408.52, 94,377.78 and 41,540.88

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Solution

The fourth proportional to 68,408.52, 94,377.78 and 41,540.88 is: 57,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,408.52 : 94,377.78 = 41,540.88 : x
  2. Step 2: Convert to fraction form
    68,408.52/94,377.78 = 41,540.88/x
  3. Step 3: Cross multiply
    68,408.52x = 94,377.78 × 41,540.88
  4. Step 4: Simplify right side
    68,408.52x = 3,920,536,033.65
  5. Step 5: Solve for x
    x = 3,920,536,033.65/68,408.52
  6. Step 6: Final answer
    x = 57,310.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.