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Finding the Fourth Proportional to 48,869.74, 73,304.79 and 20,785.78

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Solution

The fourth proportional to 48,869.74, 73,304.79 and 20,785.78 is: 31,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,869.74 : 73,304.79 = 20,785.78 : x
  2. Step 2: Convert to fraction form
    48,869.74/73,304.79 = 20,785.78/x
  3. Step 3: Cross multiply
    48,869.74x = 73,304.79 × 20,785.78
  4. Step 4: Simplify right side
    48,869.74x = 1,523,697,237.89
  5. Step 5: Solve for x
    x = 1,523,697,237.89/48,869.74
  6. Step 6: Final answer
    x = 31,178.75

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