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Finding the Fourth Proportional to 80,824.80, 121,237.17 and 25,420.80

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Solution

The fourth proportional to 80,824.80, 121,237.17 and 25,420.80 is: 38,131.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,824.80 : 121,237.17 = 25,420.80 : x
  2. Step 2: Convert to fraction form
    80,824.80/121,237.17 = 25,420.80/x
  3. Step 3: Cross multiply
    80,824.80x = 121,237.17 × 25,420.80
  4. Step 4: Simplify right side
    80,824.80x = 3,081,945,851.14
  5. Step 5: Solve for x
    x = 3,081,945,851.14/80,824.80
  6. Step 6: Final answer
    x = 38,131.19

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