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Finding the Fourth Proportional to 83,481.66, 125,221.15 and 26,554.76

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Solution

The fourth proportional to 83,481.66, 125,221.15 and 26,554.76 is: 39,831.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,481.66 : 125,221.15 = 26,554.76 : x
  2. Step 2: Convert to fraction form
    83,481.66/125,221.15 = 26,554.76/x
  3. Step 3: Cross multiply
    83,481.66x = 125,221.15 × 26,554.76
  4. Step 4: Simplify right side
    83,481.66x = 3,325,216,959.07
  5. Step 5: Solve for x
    x = 3,325,216,959.07/83,481.66
  6. Step 6: Final answer
    x = 39,831.71

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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.