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Finding the Fourth Proportional to 82,404.33, 123,611.31 and 31,803.61

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Solution

The fourth proportional to 82,404.33, 123,611.31 and 31,803.61 is: 47,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,404.33 : 123,611.31 = 31,803.61 : x
  2. Step 2: Convert to fraction form
    82,404.33/123,611.31 = 31,803.61/x
  3. Step 3: Cross multiply
    82,404.33x = 123,611.31 × 31,803.61
  4. Step 4: Simplify right side
    82,404.33x = 3,931,285,894.83
  5. Step 5: Solve for x
    x = 3,931,285,894.83/82,404.33
  6. Step 6: Final answer
    x = 47,707.27

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