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Finding the Fourth Proportional to 234,717.49, 323,910.30 and 127,287.49

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Solution

The fourth proportional to 234,717.49, 323,910.30 and 127,287.49 is: 175,656.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,717.49 : 323,910.30 = 127,287.49 : x
  2. Step 2: Convert to fraction form
    234,717.49/323,910.30 = 127,287.49/x
  3. Step 3: Cross multiply
    234,717.49x = 323,910.30 × 127,287.49
  4. Step 4: Simplify right side
    234,717.49x = 41,229,729,072.15
  5. Step 5: Solve for x
    x = 41,229,729,072.15/234,717.49
  6. Step 6: Final answer
    x = 175,656.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.