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Finding the Fourth Proportional to 116,918.99, 161,240.60 and 76,618.11

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Solution

The fourth proportional to 116,918.99, 161,240.60 and 76,618.11 is: 105,662.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,918.99 : 161,240.60 = 76,618.11 : x
  2. Step 2: Convert to fraction form
    116,918.99/161,240.60 = 76,618.11/x
  3. Step 3: Cross multiply
    116,918.99x = 161,240.60 × 76,618.11
  4. Step 4: Simplify right side
    116,918.99x = 12,353,950,027.27
  5. Step 5: Solve for x
    x = 12,353,950,027.27/116,918.99
  6. Step 6: Final answer
    x = 105,662.48

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