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Finding the Fourth Proportional to 352,674.09, 486,361.13 and 271,972.17

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Solution

The fourth proportional to 352,674.09, 486,361.13 and 271,972.17 is: 375,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,674.09 : 486,361.13 = 271,972.17 : x
  2. Step 2: Convert to fraction form
    352,674.09/486,361.13 = 271,972.17/x
  3. Step 3: Cross multiply
    352,674.09x = 486,361.13 × 271,972.17
  4. Step 4: Simplify right side
    352,674.09x = 132,276,690,569.89
  5. Step 5: Solve for x
    x = 132,276,690,569.89/352,674.09
  6. Step 6: Final answer
    x = 375,067.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.