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Finding the Fourth Proportional to 262,839.46, 394,253.53 and 73,294.78

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Solution

The fourth proportional to 262,839.46, 394,253.53 and 73,294.78 is: 109,940.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,839.46 : 394,253.53 = 73,294.78 : x
  2. Step 2: Convert to fraction form
    262,839.46/394,253.53 = 73,294.78/x
  3. Step 3: Cross multiply
    262,839.46x = 394,253.53 × 73,294.78
  4. Step 4: Simplify right side
    262,839.46x = 28,896,725,745.57
  5. Step 5: Solve for x
    x = 28,896,725,745.57/262,839.46
  6. Step 6: Final answer
    x = 109,940.59

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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.