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Finding the Fourth Proportional to 73,142.64, 100,937.04 and 39,608.64

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Solution

The fourth proportional to 73,142.64, 100,937.04 and 39,608.64 is: 54,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,142.64 : 100,937.04 = 39,608.64 : x
  2. Step 2: Convert to fraction form
    73,142.64/100,937.04 = 39,608.64/x
  3. Step 3: Cross multiply
    73,142.64x = 100,937.04 × 39,608.64
  4. Step 4: Simplify right side
    73,142.64x = 3,997,978,880.03
  5. Step 5: Solve for x
    x = 3,997,978,880.03/73,142.64
  6. Step 6: Final answer
    x = 54,660.03

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