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Finding the Fourth Proportional to 68,734.64, 103,072.78 and 24,372.56

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Solution

The fourth proportional to 68,734.64, 103,072.78 and 24,372.56 is: 36,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,734.64 : 103,072.78 = 24,372.56 : x
  2. Step 2: Convert to fraction form
    68,734.64/103,072.78 = 24,372.56/x
  3. Step 3: Cross multiply
    68,734.64x = 103,072.78 × 24,372.56
  4. Step 4: Simplify right side
    68,734.64x = 2,512,147,514.92
  5. Step 5: Solve for x
    x = 2,512,147,514.92/68,734.64
  6. Step 6: Final answer
    x = 36,548.49

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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.