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Finding the Fourth Proportional to 68,759.31, 103,148.85 and 26,080.44

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Solution

The fourth proportional to 68,759.31, 103,148.85 and 26,080.44 is: 39,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,759.31 : 103,148.85 = 26,080.44 : x
  2. Step 2: Convert to fraction form
    68,759.31/103,148.85 = 26,080.44/x
  3. Step 3: Cross multiply
    68,759.31x = 103,148.85 × 26,080.44
  4. Step 4: Simplify right side
    68,759.31x = 2,690,167,393.49
  5. Step 5: Solve for x
    x = 2,690,167,393.49/68,759.31
  6. Step 6: Final answer
    x = 39,124.41

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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.