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Finding the Fourth Proportional to 107,952.40, 161,928.60 and 81,708.40

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Solution

The fourth proportional to 107,952.40, 161,928.60 and 81,708.40 is: 122,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,952.40 : 161,928.60 = 81,708.40 : x
  2. Step 2: Convert to fraction form
    107,952.40/161,928.60 = 81,708.40/x
  3. Step 3: Cross multiply
    107,952.40x = 161,928.60 × 81,708.40
  4. Step 4: Simplify right side
    107,952.40x = 13,230,926,820.24
  5. Step 5: Solve for x
    x = 13,230,926,820.24/107,952.40
  6. Step 6: Final answer
    x = 122,562.60

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