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Finding the Fourth Proportional to 81,789.55, 122,684.47 and 22,625.43

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Solution

The fourth proportional to 81,789.55, 122,684.47 and 22,625.43 is: 33,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,789.55 : 122,684.47 = 22,625.43 : x
  2. Step 2: Convert to fraction form
    81,789.55/122,684.47 = 22,625.43/x
  3. Step 3: Cross multiply
    81,789.55x = 122,684.47 × 22,625.43
  4. Step 4: Simplify right side
    81,789.55x = 2,775,788,498.71
  5. Step 5: Solve for x
    x = 2,775,788,498.71/81,789.55
  6. Step 6: Final answer
    x = 33,938.18

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