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Finding the Fourth Proportional to 56,754.81, 78,324.07 and 31,604.31

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Solution

The fourth proportional to 56,754.81, 78,324.07 and 31,604.31 is: 43,615.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754.81 : 78,324.07 = 31,604.31 : x
  2. Step 2: Convert to fraction form
    56,754.81/78,324.07 = 31,604.31/x
  3. Step 3: Cross multiply
    56,754.81x = 78,324.07 × 31,604.31
  4. Step 4: Simplify right side
    56,754.81x = 2,475,378,463.56
  5. Step 5: Solve for x
    x = 2,475,378,463.56/56,754.81
  6. Step 6: Final answer
    x = 43,615.31

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