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Finding the Fourth Proportional to 101,483.82, 140,049.96 and 65,736.06

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Solution

The fourth proportional to 101,483.82, 140,049.96 and 65,736.06 is: 90,717.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,483.82 : 140,049.96 = 65,736.06 : x
  2. Step 2: Convert to fraction form
    101,483.82/140,049.96 = 65,736.06/x
  3. Step 3: Cross multiply
    101,483.82x = 140,049.96 × 65,736.06
  4. Step 4: Simplify right side
    101,483.82x = 9,206,332,573.56
  5. Step 5: Solve for x
    x = 9,206,332,573.56/101,483.82
  6. Step 6: Final answer
    x = 90,717.25

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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.