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Finding the Fourth Proportional to 13,494,663.60, 20,241,995.40 and 12,192,961.20

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Solution

The fourth proportional to 13,494,663.60, 20,241,995.40 and 12,192,961.20 is: 18,289,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494,663.60 : 20,241,995.40 = 12,192,961.20 : x
  2. Step 2: Convert to fraction form
    13,494,663.60/20,241,995.40 = 12,192,961.20/x
  3. Step 3: Cross multiply
    13,494,663.60x = 20,241,995.40 × 12,192,961.20
  4. Step 4: Simplify right side
    13,494,663.60x = 246,809,864,522,778.44
  5. Step 5: Solve for x
    x = 246,809,864,522,778.44/13,494,663.60
  6. Step 6: Final answer
    x = 18,289,441.80

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