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Finding the Fourth Proportional to 111,004.80, 166,507.20 and 66,681.60

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Solution

The fourth proportional to 111,004.80, 166,507.20 and 66,681.60 is: 100,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,004.80 : 166,507.20 = 66,681.60 : x
  2. Step 2: Convert to fraction form
    111,004.80/166,507.20 = 66,681.60/x
  3. Step 3: Cross multiply
    111,004.80x = 166,507.20 × 66,681.60
  4. Step 4: Simplify right side
    111,004.80x = 11,102,966,507.52
  5. Step 5: Solve for x
    x = 11,102,966,507.52/111,004.80
  6. Step 6: Final answer
    x = 100,022.40

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