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Finding the Fourth Proportional to 105,699.56, 145,858.20 and 57,943.04

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Solution

The fourth proportional to 105,699.56, 145,858.20 and 57,943.04 is: 79,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,699.56 : 145,858.20 = 57,943.04 : x
  2. Step 2: Convert to fraction form
    105,699.56/145,858.20 = 57,943.04/x
  3. Step 3: Cross multiply
    105,699.56x = 145,858.20 × 57,943.04
  4. Step 4: Simplify right side
    105,699.56x = 8,451,467,516.93
  5. Step 5: Solve for x
    x = 8,451,467,516.93/105,699.56
  6. Step 6: Final answer
    x = 79,957.45

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