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Finding the Fourth Proportional to 107,720.73, 161,438.54 and 82,665.03

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Solution

The fourth proportional to 107,720.73, 161,438.54 and 82,665.03 is: 123,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,720.73 : 161,438.54 = 82,665.03 : x
  2. Step 2: Convert to fraction form
    107,720.73/161,438.54 = 82,665.03/x
  3. Step 3: Cross multiply
    107,720.73x = 161,438.54 × 82,665.03
  4. Step 4: Simplify right side
    107,720.73x = 13,345,321,338.93
  5. Step 5: Solve for x
    x = 13,345,321,338.93/107,720.73
  6. Step 6: Final answer
    x = 123,888.14

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