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Finding the Fourth Proportional to 226,149.76, 339,380.14 and 78,405.76

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Solution

The fourth proportional to 226,149.76, 339,380.14 and 78,405.76 is: 117,662.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,149.76 : 339,380.14 = 78,405.76 : x
  2. Step 2: Convert to fraction form
    226,149.76/339,380.14 = 78,405.76/x
  3. Step 3: Cross multiply
    226,149.76x = 339,380.14 × 78,405.76
  4. Step 4: Simplify right side
    226,149.76x = 26,609,357,805.61
  5. Step 5: Solve for x
    x = 26,609,357,805.61/226,149.76
  6. Step 6: Final answer
    x = 117,662.55

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