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Finding the Fourth Proportional to 167,963.10, 251,943.07 and 68,099.55

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Solution

The fourth proportional to 167,963.10, 251,943.07 and 68,099.55 is: 102,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,963.10 : 251,943.07 = 68,099.55 : x
  2. Step 2: Convert to fraction form
    167,963.10/251,943.07 = 68,099.55/x
  3. Step 3: Cross multiply
    167,963.10x = 251,943.07 × 68,099.55
  4. Step 4: Simplify right side
    167,963.10x = 17,157,209,692.62
  5. Step 5: Solve for x
    x = 17,157,209,692.62/167,963.10
  6. Step 6: Final answer
    x = 102,148.68

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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.