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Finding the Fourth Proportional to 376,568.17, 519,664.08 and 206,802.31

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Solution

The fourth proportional to 376,568.17, 519,664.08 and 206,802.31 is: 285,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,568.17 : 519,664.08 = 206,802.31 : x
  2. Step 2: Convert to fraction form
    376,568.17/519,664.08 = 206,802.31/x
  3. Step 3: Cross multiply
    376,568.17x = 519,664.08 × 206,802.31
  4. Step 4: Simplify right side
    376,568.17x = 107,467,732,168.03
  5. Step 5: Solve for x
    x = 107,467,732,168.03/376,568.17
  6. Step 6: Final answer
    x = 285,387.19

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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.