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Finding the Fourth Proportional to 144,859.59, 217,351.81 and 78,346.54

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Solution

The fourth proportional to 144,859.59, 217,351.81 and 78,346.54 is: 117,553.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,859.59 : 217,351.81 = 78,346.54 : x
  2. Step 2: Convert to fraction form
    144,859.59/217,351.81 = 78,346.54/x
  3. Step 3: Cross multiply
    144,859.59x = 217,351.81 × 78,346.54
  4. Step 4: Simplify right side
    144,859.59x = 17,028,762,205.16
  5. Step 5: Solve for x
    x = 17,028,762,205.16/144,859.59
  6. Step 6: Final answer
    x = 117,553.57

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