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Finding the Fourth Proportional to 67,178.88, 100,769.28 and 27,731.52

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Solution

The fourth proportional to 67,178.88, 100,769.28 and 27,731.52 is: 41,597.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,178.88 : 100,769.28 = 27,731.52 : x
  2. Step 2: Convert to fraction form
    67,178.88/100,769.28 = 27,731.52/x
  3. Step 3: Cross multiply
    67,178.88x = 100,769.28 × 27,731.52
  4. Step 4: Simplify right side
    67,178.88x = 2,794,485,303.71
  5. Step 5: Solve for x
    x = 2,794,485,303.71/67,178.88
  6. Step 6: Final answer
    x = 41,597.68

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