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Finding the Fourth Proportional to 101,954.44, 140,765.17 and 63,768.05

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Solution

The fourth proportional to 101,954.44, 140,765.17 and 63,768.05 is: 88,042.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,954.44 : 140,765.17 = 63,768.05 : x
  2. Step 2: Convert to fraction form
    101,954.44/140,765.17 = 63,768.05/x
  3. Step 3: Cross multiply
    101,954.44x = 140,765.17 × 63,768.05
  4. Step 4: Simplify right side
    101,954.44x = 8,976,320,974.81
  5. Step 5: Solve for x
    x = 8,976,320,974.81/101,954.44
  6. Step 6: Final answer
    x = 88,042.47

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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.