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Finding the Fourth Proportional to 148,920.60, 223,380.90 and 78,936.60

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Solution

The fourth proportional to 148,920.60, 223,380.90 and 78,936.60 is: 118,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,920.60 : 223,380.90 = 78,936.60 : x
  2. Step 2: Convert to fraction form
    148,920.60/223,380.90 = 78,936.60/x
  3. Step 3: Cross multiply
    148,920.60x = 223,380.90 × 78,936.60
  4. Step 4: Simplify right side
    148,920.60x = 17,632,928,750.94
  5. Step 5: Solve for x
    x = 17,632,928,750.94/148,920.60
  6. Step 6: Final answer
    x = 118,404.90

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