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Finding the Fourth Proportional to 81,900.69, 122,837.34 and 22,742.34

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Solution

The fourth proportional to 81,900.69, 122,837.34 and 22,742.34 is: 34,109.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,900.69 : 122,837.34 = 22,742.34 : x
  2. Step 2: Convert to fraction form
    81,900.69/122,837.34 = 22,742.34/x
  3. Step 3: Cross multiply
    81,900.69x = 122,837.34 × 22,742.34
  4. Step 4: Simplify right side
    81,900.69x = 2,793,608,550.98
  5. Step 5: Solve for x
    x = 2,793,608,550.98/81,900.69
  6. Step 6: Final answer
    x = 34,109.71

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