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Finding the Fourth Proportional to 111,326.40, 166,989.60 and 104,911.20

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Solution

The fourth proportional to 111,326.40, 166,989.60 and 104,911.20 is: 157,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,326.40 : 166,989.60 = 104,911.20 : x
  2. Step 2: Convert to fraction form
    111,326.40/166,989.60 = 104,911.20/x
  3. Step 3: Cross multiply
    111,326.40x = 166,989.60 × 104,911.20
  4. Step 4: Simplify right side
    111,326.40x = 17,519,079,323.52
  5. Step 5: Solve for x
    x = 17,519,079,323.52/111,326.40
  6. Step 6: Final answer
    x = 157,366.80

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