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Finding the Fourth Proportional to 234,380.25, 351,629.91 and 68,168.25

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Solution

The fourth proportional to 234,380.25, 351,629.91 and 68,168.25 is: 102,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,380.25 : 351,629.91 = 68,168.25 : x
  2. Step 2: Convert to fraction form
    234,380.25/351,629.91 = 68,168.25/x
  3. Step 3: Cross multiply
    234,380.25x = 351,629.91 × 68,168.25
  4. Step 4: Simplify right side
    234,380.25x = 23,969,995,612.36
  5. Step 5: Solve for x
    x = 23,969,995,612.36/234,380.25
  6. Step 6: Final answer
    x = 102,269.69

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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.