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Finding the Fourth Proportional to 54,201.71, 81,197.36 and 39,944.29

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Solution

The fourth proportional to 54,201.71, 81,197.36 and 39,944.29 is: 59,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,201.71 : 81,197.36 = 39,944.29 : x
  2. Step 2: Convert to fraction form
    54,201.71/81,197.36 = 39,944.29/x
  3. Step 3: Cross multiply
    54,201.71x = 81,197.36 × 39,944.29
  4. Step 4: Simplify right side
    54,201.71x = 3,243,370,906.74
  5. Step 5: Solve for x
    x = 3,243,370,906.74/54,201.71
  6. Step 6: Final answer
    x = 59,838.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.