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Finding the Fourth Proportional to 77,321.02, 115,999.98 and 27,405.48

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Solution

The fourth proportional to 77,321.02, 115,999.98 and 27,405.48 is: 41,114.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,321.02 : 115,999.98 = 27,405.48 : x
  2. Step 2: Convert to fraction form
    77,321.02/115,999.98 = 27,405.48/x
  3. Step 3: Cross multiply
    77,321.02x = 115,999.98 × 27,405.48
  4. Step 4: Simplify right side
    77,321.02x = 3,179,035,131.89
  5. Step 5: Solve for x
    x = 3,179,035,131.89/77,321.02
  6. Step 6: Final answer
    x = 41,114.76

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