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Finding the Fourth Proportional to 78,289.46, 117,286.56 and 60,673.16

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Solution

The fourth proportional to 78,289.46, 117,286.56 and 60,673.16 is: 90,895.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,289.46 : 117,286.56 = 60,673.16 : x
  2. Step 2: Convert to fraction form
    78,289.46/117,286.56 = 60,673.16/x
  3. Step 3: Cross multiply
    78,289.46x = 117,286.56 × 60,673.16
  4. Step 4: Simplify right side
    78,289.46x = 7,116,146,220.73
  5. Step 5: Solve for x
    x = 7,116,146,220.73/78,289.46
  6. Step 6: Final answer
    x = 90,895.33

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