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Finding the Fourth Proportional to 90,706.44, 136,121.58 and 31,541.52

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Solution

The fourth proportional to 90,706.44, 136,121.58 and 31,541.52 is: 47,333.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,706.44 : 136,121.58 = 31,541.52 : x
  2. Step 2: Convert to fraction form
    90,706.44/136,121.58 = 31,541.52/x
  3. Step 3: Cross multiply
    90,706.44x = 136,121.58 × 31,541.52
  4. Step 4: Simplify right side
    90,706.44x = 4,293,481,538.00
  5. Step 5: Solve for x
    x = 4,293,481,538.00/90,706.44
  6. Step 6: Final answer
    x = 47,333.81

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