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Finding the Fourth Proportional to 111,422.88, 153,651.60 and 66,736.80

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Solution

The fourth proportional to 111,422.88, 153,651.60 and 66,736.80 is: 92,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,422.88 : 153,651.60 = 66,736.80 : x
  2. Step 2: Convert to fraction form
    111,422.88/153,651.60 = 66,736.80/x
  3. Step 3: Cross multiply
    111,422.88x = 153,651.60 × 66,736.80
  4. Step 4: Simplify right side
    111,422.88x = 10,254,216,098.88
  5. Step 5: Solve for x
    x = 10,254,216,098.88/111,422.88
  6. Step 6: Final answer
    x = 92,029.72

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