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Finding the Fourth Proportional to 112,121.10, 168,178.01 and 45,541.53

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Solution

The fourth proportional to 112,121.10, 168,178.01 and 45,541.53 is: 68,310.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.10 : 168,178.01 = 45,541.53 : x
  2. Step 2: Convert to fraction form
    112,121.10/168,178.01 = 45,541.53/x
  3. Step 3: Cross multiply
    112,121.10x = 168,178.01 × 45,541.53
  4. Step 4: Simplify right side
    112,121.10x = 7,659,083,660.05
  5. Step 5: Solve for x
    x = 7,659,083,660.05/112,121.10
  6. Step 6: Final answer
    x = 68,310.81

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