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Finding the Fourth Proportional to 77,668.56, 116,668.80 and 55,623.60

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Solution

The fourth proportional to 77,668.56, 116,668.80 and 55,623.60 is: 83,554.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,668.56 : 116,668.80 = 55,623.60 : x
  2. Step 2: Convert to fraction form
    77,668.56/116,668.80 = 55,623.60/x
  3. Step 3: Cross multiply
    77,668.56x = 116,668.80 × 55,623.60
  4. Step 4: Simplify right side
    77,668.56x = 6,489,538,663.68
  5. Step 5: Solve for x
    x = 6,489,538,663.68/77,668.56
  6. Step 6: Final answer
    x = 83,554.25

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