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Finding the Fourth Proportional to 79,283.25, 109,400.85 and 43,463.85

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Solution

The fourth proportional to 79,283.25, 109,400.85 and 43,463.85 is: 59,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,283.25 : 109,400.85 = 43,463.85 : x
  2. Step 2: Convert to fraction form
    79,283.25/109,400.85 = 43,463.85/x
  3. Step 3: Cross multiply
    79,283.25x = 109,400.85 × 43,463.85
  4. Step 4: Simplify right side
    79,283.25x = 4,754,982,134.27
  5. Step 5: Solve for x
    x = 4,754,982,134.27/79,283.25
  6. Step 6: Final answer
    x = 59,974.61

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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.