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Finding the Fourth Proportional to 117,218.40, 161,600.72 and 74,176.48

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Solution

The fourth proportional to 117,218.40, 161,600.72 and 74,176.48 is: 102,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,218.40 : 161,600.72 = 74,176.48 : x
  2. Step 2: Convert to fraction form
    117,218.40/161,600.72 = 74,176.48/x
  3. Step 3: Cross multiply
    117,218.40x = 161,600.72 × 74,176.48
  4. Step 4: Simplify right side
    117,218.40x = 11,986,972,575.07
  5. Step 5: Solve for x
    x = 11,986,972,575.07/117,218.40
  6. Step 6: Final answer
    x = 102,261.87

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