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Finding the Fourth Proportional to 49,874.40, 68,745.92 and 43,397.44

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Solution

The fourth proportional to 49,874.40, 68,745.92 and 43,397.44 is: 59,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,874.40 : 68,745.92 = 43,397.44 : x
  2. Step 2: Convert to fraction form
    49,874.40/68,745.92 = 43,397.44/x
  3. Step 3: Cross multiply
    49,874.40x = 68,745.92 × 43,397.44
  4. Step 4: Simplify right side
    49,874.40x = 2,983,396,938.44
  5. Step 5: Solve for x
    x = 2,983,396,938.44/49,874.40
  6. Step 6: Final answer
    x = 59,818.20

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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.