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Finding the Fourth Proportional to 86,348.73, 129,523.23 and 33,721.23

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Solution

The fourth proportional to 86,348.73, 129,523.23 and 33,721.23 is: 50,581.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,348.73 : 129,523.23 = 33,721.23 : x
  2. Step 2: Convert to fraction form
    86,348.73/129,523.23 = 33,721.23/x
  3. Step 3: Cross multiply
    86,348.73x = 129,523.23 × 33,721.23
  4. Step 4: Simplify right side
    86,348.73x = 4,367,682,629.17
  5. Step 5: Solve for x
    x = 4,367,682,629.17/86,348.73
  6. Step 6: Final answer
    x = 50,581.90

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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.