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Finding the Fourth Proportional to 223,694.89, 335,542.30 and 81,550.82

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Solution

The fourth proportional to 223,694.89, 335,542.30 and 81,550.82 is: 122,326.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,694.89 : 335,542.30 = 81,550.82 : x
  2. Step 2: Convert to fraction form
    223,694.89/335,542.30 = 81,550.82/x
  3. Step 3: Cross multiply
    223,694.89x = 335,542.30 × 81,550.82
  4. Step 4: Simplify right side
    223,694.89x = 27,363,749,709.69
  5. Step 5: Solve for x
    x = 27,363,749,709.69/223,694.89
  6. Step 6: Final answer
    x = 122,326.22

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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.