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Finding the Fourth Proportional to 76,795.59, 115,212.83 and 21,391.59

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Solution

The fourth proportional to 76,795.59, 115,212.83 and 21,391.59 is: 32,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,795.59 : 115,212.83 = 21,391.59 : x
  2. Step 2: Convert to fraction form
    76,795.59/115,212.83 = 21,391.59/x
  3. Step 3: Cross multiply
    76,795.59x = 115,212.83 × 21,391.59
  4. Step 4: Simplify right side
    76,795.59x = 2,464,586,067.52
  5. Step 5: Solve for x
    x = 2,464,586,067.52/76,795.59
  6. Step 6: Final answer
    x = 32,092.81

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