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Finding the Fourth Proportional to 234,195.31, 323,190.34 and 126,765.32

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Solution

The fourth proportional to 234,195.31, 323,190.34 and 126,765.32 is: 174,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,195.31 : 323,190.34 = 126,765.32 : x
  2. Step 2: Convert to fraction form
    234,195.31/323,190.34 = 126,765.32/x
  3. Step 3: Cross multiply
    234,195.31x = 323,190.34 × 126,765.32
  4. Step 4: Simplify right side
    234,195.31x = 40,969,324,938.14
  5. Step 5: Solve for x
    x = 40,969,324,938.14/234,195.31
  6. Step 6: Final answer
    x = 174,936.57

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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.