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Finding the Fourth Proportional to 234,215.88, 351,108.54 and 84,419.52

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Solution

The fourth proportional to 234,215.88, 351,108.54 and 84,419.52 is: 126,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,215.88 : 351,108.54 = 84,419.52 : x
  2. Step 2: Convert to fraction form
    234,215.88/351,108.54 = 84,419.52/x
  3. Step 3: Cross multiply
    234,215.88x = 351,108.54 × 84,419.52
  4. Step 4: Simplify right side
    234,215.88x = 29,640,414,414.70
  5. Step 5: Solve for x
    x = 29,640,414,414.70/234,215.88
  6. Step 6: Final answer
    x = 126,551.69

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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.