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Finding the Fourth Proportional to 116,681.88, 161,020.26 and 65,696.16

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Solution

The fourth proportional to 116,681.88, 161,020.26 and 65,696.16 is: 90,660.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,681.88 : 161,020.26 = 65,696.16 : x
  2. Step 2: Convert to fraction form
    116,681.88/161,020.26 = 65,696.16/x
  3. Step 3: Cross multiply
    116,681.88x = 161,020.26 × 65,696.16
  4. Step 4: Simplify right side
    116,681.88x = 10,578,412,764.20
  5. Step 5: Solve for x
    x = 10,578,412,764.20/116,681.88
  6. Step 6: Final answer
    x = 90,660.29

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