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Finding the Fourth Proportional to 73,757.82, 101,785.63 and 40,223.82

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Solution

The fourth proportional to 73,757.82, 101,785.63 and 40,223.82 is: 55,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,757.82 : 101,785.63 = 40,223.82 : x
  2. Step 2: Convert to fraction form
    73,757.82/101,785.63 = 40,223.82/x
  3. Step 3: Cross multiply
    73,757.82x = 101,785.63 × 40,223.82
  4. Step 4: Simplify right side
    73,757.82x = 4,094,206,859.71
  5. Step 5: Solve for x
    x = 4,094,206,859.71/73,757.82
  6. Step 6: Final answer
    x = 55,508.78

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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.