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Finding the Fourth Proportional to 77,243.68, 115,865.52 and 49,716.64

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Solution

The fourth proportional to 77,243.68, 115,865.52 and 49,716.64 is: 74,574.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,243.68 : 115,865.52 = 49,716.64 : x
  2. Step 2: Convert to fraction form
    77,243.68/115,865.52 = 49,716.64/x
  3. Step 3: Cross multiply
    77,243.68x = 115,865.52 × 49,716.64
  4. Step 4: Simplify right side
    77,243.68x = 5,760,444,346.25
  5. Step 5: Solve for x
    x = 5,760,444,346.25/77,243.68
  6. Step 6: Final answer
    x = 74,574.96

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