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Finding the Fourth Proportional to 68,441.26, 102,694.68 and 33,361.78

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Solution

The fourth proportional to 68,441.26, 102,694.68 and 33,361.78 is: 50,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,441.26 : 102,694.68 = 33,361.78 : x
  2. Step 2: Convert to fraction form
    68,441.26/102,694.68 = 33,361.78/x
  3. Step 3: Cross multiply
    68,441.26x = 102,694.68 × 33,361.78
  4. Step 4: Simplify right side
    68,441.26x = 3,426,077,321.33
  5. Step 5: Solve for x
    x = 3,426,077,321.33/68,441.26
  6. Step 6: Final answer
    x = 50,058.65

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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.