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Finding the Fourth Proportional to 71,040.96, 106,581.42 and 31,063.46

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Solution

The fourth proportional to 71,040.96, 106,581.42 and 31,063.46 is: 46,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,040.96 : 106,581.42 = 31,063.46 : x
  2. Step 2: Convert to fraction form
    71,040.96/106,581.42 = 31,063.46/x
  3. Step 3: Cross multiply
    71,040.96x = 106,581.42 × 31,063.46
  4. Step 4: Simplify right side
    71,040.96x = 3,310,787,144.01
  5. Step 5: Solve for x
    x = 3,310,787,144.01/71,040.96
  6. Step 6: Final answer
    x = 46,603.92

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