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Finding the Fourth Proportional to 268,132.58, 402,198.36 and 68,452.90

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Solution

The fourth proportional to 268,132.58, 402,198.36 and 68,452.90 is: 102,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,132.58 : 402,198.36 = 68,452.90 : x
  2. Step 2: Convert to fraction form
    268,132.58/402,198.36 = 68,452.90/x
  3. Step 3: Cross multiply
    268,132.58x = 402,198.36 × 68,452.90
  4. Step 4: Simplify right side
    268,132.58x = 27,531,644,117.24
  5. Step 5: Solve for x
    x = 27,531,644,117.24/268,132.58
  6. Step 6: Final answer
    x = 102,679.22

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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.