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Finding the Fourth Proportional to 73,255.13, 101,092.12 and 39,721.13

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Solution

The fourth proportional to 73,255.13, 101,092.12 and 39,721.13 is: 54,815.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,255.13 : 101,092.12 = 39,721.13 : x
  2. Step 2: Convert to fraction form
    73,255.13/101,092.12 = 39,721.13/x
  3. Step 3: Cross multiply
    73,255.13x = 101,092.12 × 39,721.13
  4. Step 4: Simplify right side
    73,255.13x = 4,015,492,635.73
  5. Step 5: Solve for x
    x = 4,015,492,635.73/73,255.13
  6. Step 6: Final answer
    x = 54,815.18

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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.