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Finding the Fourth Proportional to 105,675.75, 145,832.67 and 57,930.84

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Solution

The fourth proportional to 105,675.75, 145,832.67 and 57,930.84 is: 79,944.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,675.75 : 145,832.67 = 57,930.84 : x
  2. Step 2: Convert to fraction form
    105,675.75/145,832.67 = 57,930.84/x
  3. Step 3: Cross multiply
    105,675.75x = 145,832.67 × 57,930.84
  4. Step 4: Simplify right side
    105,675.75x = 8,448,209,072.54
  5. Step 5: Solve for x
    x = 8,448,209,072.54/105,675.75
  6. Step 6: Final answer
    x = 79,944.63

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