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Finding the Fourth Proportional to 107,465.80, 161,198.70 and 74,288.20

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Solution

The fourth proportional to 107,465.80, 161,198.70 and 74,288.20 is: 111,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,465.80 : 161,198.70 = 74,288.20 : x
  2. Step 2: Convert to fraction form
    107,465.80/161,198.70 = 74,288.20/x
  3. Step 3: Cross multiply
    107,465.80x = 161,198.70 × 74,288.20
  4. Step 4: Simplify right side
    107,465.80x = 11,975,161,265.34
  5. Step 5: Solve for x
    x = 11,975,161,265.34/107,465.80
  6. Step 6: Final answer
    x = 111,432.30

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