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Finding the Fourth Proportional to 84,313.26, 126,469.71 and 25,147.44

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Solution

The fourth proportional to 84,313.26, 126,469.71 and 25,147.44 is: 37,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,313.26 : 126,469.71 = 25,147.44 : x
  2. Step 2: Convert to fraction form
    84,313.26/126,469.71 = 25,147.44/x
  3. Step 3: Cross multiply
    84,313.26x = 126,469.71 × 25,147.44
  4. Step 4: Simplify right side
    84,313.26x = 3,180,389,444.04
  5. Step 5: Solve for x
    x = 3,180,389,444.04/84,313.26
  6. Step 6: Final answer
    x = 37,721.11

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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.