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Finding the Fourth Proportional to 77,271.12, 115,915.80 and 27,340.80

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Solution

The fourth proportional to 77,271.12, 115,915.80 and 27,340.80 is: 41,014.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,271.12 : 115,915.80 = 27,340.80 : x
  2. Step 2: Convert to fraction form
    77,271.12/115,915.80 = 27,340.80/x
  3. Step 3: Cross multiply
    77,271.12x = 115,915.80 × 27,340.80
  4. Step 4: Simplify right side
    77,271.12x = 3,169,230,704.64
  5. Step 5: Solve for x
    x = 3,169,230,704.64/77,271.12
  6. Step 6: Final answer
    x = 41,014.43

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