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Finding the Fourth Proportional to 77,428.35, 106,865.71 and 50,524.15

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Solution

The fourth proportional to 77,428.35, 106,865.71 and 50,524.15 is: 69,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,428.35 : 106,865.71 = 50,524.15 : x
  2. Step 2: Convert to fraction form
    77,428.35/106,865.71 = 50,524.15/x
  3. Step 3: Cross multiply
    77,428.35x = 106,865.71 × 50,524.15
  4. Step 4: Simplify right side
    77,428.35x = 5,399,299,161.90
  5. Step 5: Solve for x
    x = 5,399,299,161.90/77,428.35
  6. Step 6: Final answer
    x = 69,732.85

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