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Finding the Fourth Proportional to 263,190.13, 394,809.31 and 73,649.96

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Solution

The fourth proportional to 263,190.13, 394,809.31 and 73,649.96 is: 110,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,190.13 : 394,809.31 = 73,649.96 : x
  2. Step 2: Convert to fraction form
    263,190.13/394,809.31 = 73,649.96/x
  3. Step 3: Cross multiply
    263,190.13x = 394,809.31 × 73,649.96
  4. Step 4: Simplify right side
    263,190.13x = 29,077,689,694.82
  5. Step 5: Solve for x
    x = 29,077,689,694.82/263,190.13
  6. Step 6: Final answer
    x = 110,481.69

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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.