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Finding the Fourth Proportional to 73,743.32, 110,600.10 and 21,138.68

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Solution

The fourth proportional to 73,743.32, 110,600.10 and 21,138.68 is: 31,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,743.32 : 110,600.10 = 21,138.68 : x
  2. Step 2: Convert to fraction form
    73,743.32/110,600.10 = 21,138.68/x
  3. Step 3: Cross multiply
    73,743.32x = 110,600.10 × 21,138.68
  4. Step 4: Simplify right side
    73,743.32x = 2,337,940,121.87
  5. Step 5: Solve for x
    x = 2,337,940,121.87/73,743.32
  6. Step 6: Final answer
    x = 31,703.75

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