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Finding the Fourth Proportional to 80,613.78, 120,941.16 and 47,361.96

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Solution

The fourth proportional to 80,613.78, 120,941.16 and 47,361.96 is: 71,054.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,613.78 : 120,941.16 = 47,361.96 : x
  2. Step 2: Convert to fraction form
    80,613.78/120,941.16 = 47,361.96/x
  3. Step 3: Cross multiply
    80,613.78x = 120,941.16 × 47,361.96
  4. Step 4: Simplify right side
    80,613.78x = 5,728,010,382.27
  5. Step 5: Solve for x
    x = 5,728,010,382.27/80,613.78
  6. Step 6: Final answer
    x = 71,054.98

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