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Finding the Fourth Proportional to 56,535.87, 78,016.45 and 31,383.75

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Solution

The fourth proportional to 56,535.87, 78,016.45 and 31,383.75 is: 43,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,535.87 : 78,016.45 = 31,383.75 : x
  2. Step 2: Convert to fraction form
    56,535.87/78,016.45 = 31,383.75/x
  3. Step 3: Cross multiply
    56,535.87x = 78,016.45 × 31,383.75
  4. Step 4: Simplify right side
    56,535.87x = 2,448,448,762.69
  5. Step 5: Solve for x
    x = 2,448,448,762.69/56,535.87
  6. Step 6: Final answer
    x = 43,307.88

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