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Finding the Fourth Proportional to 123,958.60, 186,132.30 and 71,470.60

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Solution

The fourth proportional to 123,958.60, 186,132.30 and 71,470.60 is: 107,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,958.60 : 186,132.30 = 71,470.60 : x
  2. Step 2: Convert to fraction form
    123,958.60/186,132.30 = 71,470.60/x
  3. Step 3: Cross multiply
    123,958.60x = 186,132.30 × 71,470.60
  4. Step 4: Simplify right side
    123,958.60x = 13,302,987,160.38
  5. Step 5: Solve for x
    x = 13,302,987,160.38/123,958.60
  6. Step 6: Final answer
    x = 107,317.98

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