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Finding the Fourth Proportional to 83,422.98, 125,133.42 and 20,243.63

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Solution

The fourth proportional to 83,422.98, 125,133.42 and 20,243.63 is: 30,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,422.98 : 125,133.42 = 20,243.63 : x
  2. Step 2: Convert to fraction form
    83,422.98/125,133.42 = 20,243.63/x
  3. Step 3: Cross multiply
    83,422.98x = 125,133.42 × 20,243.63
  4. Step 4: Simplify right side
    83,422.98x = 2,533,154,029.45
  5. Step 5: Solve for x
    x = 2,533,154,029.45/83,422.98
  6. Step 6: Final answer
    x = 30,365.18

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