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Finding the Fourth Proportional to 72,829.20, 109,276.20 and 26,115.60

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Solution

The fourth proportional to 72,829.20, 109,276.20 and 26,115.60 is: 39,185.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,829.20 : 109,276.20 = 26,115.60 : x
  2. Step 2: Convert to fraction form
    72,829.20/109,276.20 = 26,115.60/x
  3. Step 3: Cross multiply
    72,829.20x = 109,276.20 × 26,115.60
  4. Step 4: Simplify right side
    72,829.20x = 2,853,813,528.72
  5. Step 5: Solve for x
    x = 2,853,813,528.72/72,829.20
  6. Step 6: Final answer
    x = 39,185.02

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