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Finding the Fourth Proportional to 71,890.40, 107,694.16 and 67,794.03

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Solution

The fourth proportional to 71,890.40, 107,694.16 and 67,794.03 is: 101,557.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,890.40 : 107,694.16 = 67,794.03 : x
  2. Step 2: Convert to fraction form
    71,890.40/107,694.16 = 67,794.03/x
  3. Step 3: Cross multiply
    71,890.40x = 107,694.16 × 67,794.03
  4. Step 4: Simplify right side
    71,890.40x = 7,301,020,944.38
  5. Step 5: Solve for x
    x = 7,301,020,944.38/71,890.40
  6. Step 6: Final answer
    x = 101,557.66

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