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Finding the Fourth Proportional to 91,931.54, 137,936.39 and 51,956.01

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Solution

The fourth proportional to 91,931.54, 137,936.39 and 51,956.01 is: 77,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,931.54 : 137,936.39 = 51,956.01 : x
  2. Step 2: Convert to fraction form
    91,931.54/137,936.39 = 51,956.01/x
  3. Step 3: Cross multiply
    91,931.54x = 137,936.39 × 51,956.01
  4. Step 4: Simplify right side
    91,931.54x = 7,166,624,198.42
  5. Step 5: Solve for x
    x = 7,166,624,198.42/91,931.54
  6. Step 6: Final answer
    x = 77,956.10

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