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Finding the Fourth Proportional to 84,713.80, 127,046.40 and 25,535.20

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Solution

The fourth proportional to 84,713.80, 127,046.40 and 25,535.20 is: 38,295.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,713.80 : 127,046.40 = 25,535.20 : x
  2. Step 2: Convert to fraction form
    84,713.80/127,046.40 = 25,535.20/x
  3. Step 3: Cross multiply
    84,713.80x = 127,046.40 × 25,535.20
  4. Step 4: Simplify right side
    84,713.80x = 3,244,155,233.28
  5. Step 5: Solve for x
    x = 3,244,155,233.28/84,713.80
  6. Step 6: Final answer
    x = 38,295.48

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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.