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Finding the Fourth Proportional to 79,620.80, 119,431.20 and 44,191.40

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Solution

The fourth proportional to 79,620.80, 119,431.20 and 44,191.40 is: 66,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,620.80 : 119,431.20 = 44,191.40 : x
  2. Step 2: Convert to fraction form
    79,620.80/119,431.20 = 44,191.40/x
  3. Step 3: Cross multiply
    79,620.80x = 119,431.20 × 44,191.40
  4. Step 4: Simplify right side
    79,620.80x = 5,277,831,931.68
  5. Step 5: Solve for x
    x = 5,277,831,931.68/79,620.80
  6. Step 6: Final answer
    x = 66,287.10

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