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Finding the Fourth Proportional to 117,191.12, 161,752.68 and 66,919.28

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Solution

The fourth proportional to 117,191.12, 161,752.68 and 66,919.28 is: 92,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,191.12 : 161,752.68 = 66,919.28 : x
  2. Step 2: Convert to fraction form
    117,191.12/161,752.68 = 66,919.28/x
  3. Step 3: Cross multiply
    117,191.12x = 161,752.68 × 66,919.28
  4. Step 4: Simplify right side
    117,191.12x = 10,824,372,883.67
  5. Step 5: Solve for x
    x = 10,824,372,883.67/117,191.12
  6. Step 6: Final answer
    x = 92,365.13

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