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Finding the Fourth Proportional to 77,432.76, 106,878.09 and 50,574.69

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Solution

The fourth proportional to 77,432.76, 106,878.09 and 50,574.69 is: 69,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,432.76 : 106,878.09 = 50,574.69 : x
  2. Step 2: Convert to fraction form
    77,432.76/106,878.09 = 50,574.69/x
  3. Step 3: Cross multiply
    77,432.76x = 106,878.09 × 50,574.69
  4. Step 4: Simplify right side
    77,432.76x = 5,405,326,269.54
  5. Step 5: Solve for x
    x = 5,405,326,269.54/77,432.76
  6. Step 6: Final answer
    x = 69,806.71

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