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Finding the Fourth Proportional to 234,309.43, 323,346.43 and 126,879.45

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Solution

The fourth proportional to 234,309.43, 323,346.43 and 126,879.45 is: 175,093.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,309.43 : 323,346.43 = 126,879.45 : x
  2. Step 2: Convert to fraction form
    234,309.43/323,346.43 = 126,879.45/x
  3. Step 3: Cross multiply
    234,309.43x = 323,346.43 × 126,879.45
  4. Step 4: Simplify right side
    234,309.43x = 41,026,016,563.47
  5. Step 5: Solve for x
    x = 41,026,016,563.47/234,309.43
  6. Step 6: Final answer
    x = 175,093.33

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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.