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Finding the Fourth Proportional to 75,620.95, 113,422.77 and 20,221.27

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Solution

The fourth proportional to 75,620.95, 113,422.77 and 20,221.27 is: 30,329.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,620.95 : 113,422.77 = 20,221.27 : x
  2. Step 2: Convert to fraction form
    75,620.95/113,422.77 = 20,221.27/x
  3. Step 3: Cross multiply
    75,620.95x = 113,422.77 × 20,221.27
  4. Step 4: Simplify right side
    75,620.95x = 2,293,552,456.32
  5. Step 5: Solve for x
    x = 2,293,552,456.32/75,620.95
  6. Step 6: Final answer
    x = 30,329.59

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