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Finding the Fourth Proportional to 107,916.20, 161,874.30 and 104,287.40

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Solution

The fourth proportional to 107,916.20, 161,874.30 and 104,287.40 is: 156,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,916.20 : 161,874.30 = 104,287.40 : x
  2. Step 2: Convert to fraction form
    107,916.20/161,874.30 = 104,287.40/x
  3. Step 3: Cross multiply
    107,916.20x = 161,874.30 × 104,287.40
  4. Step 4: Simplify right side
    107,916.20x = 16,881,449,873.82
  5. Step 5: Solve for x
    x = 16,881,449,873.82/107,916.20
  6. Step 6: Final answer
    x = 156,431.10

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