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Finding the Fourth Proportional to 107,842.80, 161,764.20 and 92,809.20

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Solution

The fourth proportional to 107,842.80, 161,764.20 and 92,809.20 is: 139,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,842.80 : 161,764.20 = 92,809.20 : x
  2. Step 2: Convert to fraction form
    107,842.80/161,764.20 = 92,809.20/x
  3. Step 3: Cross multiply
    107,842.80x = 161,764.20 × 92,809.20
  4. Step 4: Simplify right side
    107,842.80x = 15,013,205,990.64
  5. Step 5: Solve for x
    x = 15,013,205,990.64/107,842.80
  6. Step 6: Final answer
    x = 139,213.80

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