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Finding the Fourth Proportional to 263,161.89, 394,767.84 and 73,622.29

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Solution

The fourth proportional to 263,161.89, 394,767.84 and 73,622.29 is: 110,440.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,161.89 : 394,767.84 = 73,622.29 : x
  2. Step 2: Convert to fraction form
    263,161.89/394,767.84 = 73,622.29/x
  3. Step 3: Cross multiply
    263,161.89x = 394,767.84 × 73,622.29
  4. Step 4: Simplify right side
    263,161.89x = 29,063,712,399.15
  5. Step 5: Solve for x
    x = 29,063,712,399.15/263,161.89
  6. Step 6: Final answer
    x = 110,440.43

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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.