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Finding the Fourth Proportional to 136,578.72, 188,569.11 and 88,202.28

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Solution

The fourth proportional to 136,578.72, 188,569.11 and 88,202.28 is: 121,777.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,578.72 : 188,569.11 = 88,202.28 : x
  2. Step 2: Convert to fraction form
    136,578.72/188,569.11 = 88,202.28/x
  3. Step 3: Cross multiply
    136,578.72x = 188,569.11 × 88,202.28
  4. Step 4: Simplify right side
    136,578.72x = 16,632,225,439.57
  5. Step 5: Solve for x
    x = 16,632,225,439.57/136,578.72
  6. Step 6: Final answer
    x = 121,777.58

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