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Finding the Fourth Proportional to 54,131.76, 81,142.16 and 27,428.36

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Solution

The fourth proportional to 54,131.76, 81,142.16 and 27,428.36 is: 41,114.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,131.76 : 81,142.16 = 27,428.36 : x
  2. Step 2: Convert to fraction form
    54,131.76/81,142.16 = 27,428.36/x
  3. Step 3: Cross multiply
    54,131.76x = 81,142.16 × 27,428.36
  4. Step 4: Simplify right side
    54,131.76x = 2,225,595,832.81
  5. Step 5: Solve for x
    x = 2,225,595,832.81/54,131.76
  6. Step 6: Final answer
    x = 41,114.42

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