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Finding the Fourth Proportional to 103,478.05, 155,235.30 and 36,956.80

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Solution

The fourth proportional to 103,478.05, 155,235.30 and 36,956.80 is: 55,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,478.05 : 155,235.30 = 36,956.80 : x
  2. Step 2: Convert to fraction form
    103,478.05/155,235.30 = 36,956.80/x
  3. Step 3: Cross multiply
    103,478.05x = 155,235.30 × 36,956.80
  4. Step 4: Simplify right side
    103,478.05x = 5,736,999,935.04
  5. Step 5: Solve for x
    x = 5,736,999,935.04/103,478.05
  6. Step 6: Final answer
    x = 55,441.71

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