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Finding the Fourth Proportional to 158,521.48, 218,761.20 and 86,902.96

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Solution

The fourth proportional to 158,521.48, 218,761.20 and 86,902.96 is: 119,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,521.48 : 218,761.20 = 86,902.96 : x
  2. Step 2: Convert to fraction form
    158,521.48/218,761.20 = 86,902.96/x
  3. Step 3: Cross multiply
    158,521.48x = 218,761.20 × 86,902.96
  4. Step 4: Simplify right side
    158,521.48x = 19,010,995,813.15
  5. Step 5: Solve for x
    x = 19,010,995,813.15/158,521.48
  6. Step 6: Final answer
    x = 119,926.94

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