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Finding the Fourth Proportional to 102,478.52, 153,722.49 and 31,396.06

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Solution

The fourth proportional to 102,478.52, 153,722.49 and 31,396.06 is: 47,095.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,478.52 : 153,722.49 = 31,396.06 : x
  2. Step 2: Convert to fraction form
    102,478.52/153,722.49 = 31,396.06/x
  3. Step 3: Cross multiply
    102,478.52x = 153,722.49 × 31,396.06
  4. Step 4: Simplify right side
    102,478.52x = 4,826,280,519.39
  5. Step 5: Solve for x
    x = 4,826,280,519.39/102,478.52
  6. Step 6: Final answer
    x = 47,095.53

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