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Finding the Fourth Proportional to 120,954.40, 181,431.60 and 83,629.60

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Solution

The fourth proportional to 120,954.40, 181,431.60 and 83,629.60 is: 125,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,954.40 : 181,431.60 = 83,629.60 : x
  2. Step 2: Convert to fraction form
    120,954.40/181,431.60 = 83,629.60/x
  3. Step 3: Cross multiply
    120,954.40x = 181,431.60 × 83,629.60
  4. Step 4: Simplify right side
    120,954.40x = 15,173,052,135.36
  5. Step 5: Solve for x
    x = 15,173,052,135.36/120,954.40
  6. Step 6: Final answer
    x = 125,444.40

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