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Finding the Fourth Proportional to 67,291.10, 100,900.20 and 27,803.60

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Solution

The fourth proportional to 67,291.10, 100,900.20 and 27,803.60 is: 41,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,291.10 : 100,900.20 = 27,803.60 : x
  2. Step 2: Convert to fraction form
    67,291.10/100,900.20 = 27,803.60/x
  3. Step 3: Cross multiply
    67,291.10x = 100,900.20 × 27,803.60
  4. Step 4: Simplify right side
    67,291.10x = 2,805,388,800.72
  5. Step 5: Solve for x
    x = 2,805,388,800.72/67,291.10
  6. Step 6: Final answer
    x = 41,690.34

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