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Finding the Fourth Proportional to 117,428.28, 162,048.99 and 71,471.31

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Solution

The fourth proportional to 117,428.28, 162,048.99 and 71,471.31 is: 98,629.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,428.28 : 162,048.99 = 71,471.31 : x
  2. Step 2: Convert to fraction form
    117,428.28/162,048.99 = 71,471.31/x
  3. Step 3: Cross multiply
    117,428.28x = 162,048.99 × 71,471.31
  4. Step 4: Simplify right side
    117,428.28x = 11,581,853,736.58
  5. Step 5: Solve for x
    x = 11,581,853,736.58/117,428.28
  6. Step 6: Final answer
    x = 98,629.17

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