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Finding the Fourth Proportional to 376,131.17, 519,061.70 and 206,366.51

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Solution

The fourth proportional to 376,131.17, 519,061.70 and 206,366.51 is: 284,786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,131.17 : 519,061.70 = 206,366.51 : x
  2. Step 2: Convert to fraction form
    376,131.17/519,061.70 = 206,366.51/x
  3. Step 3: Cross multiply
    376,131.17x = 519,061.70 × 206,366.51
  4. Step 4: Simplify right side
    376,131.17x = 107,116,951,503.67
  5. Step 5: Solve for x
    x = 107,116,951,503.67/376,131.17
  6. Step 6: Final answer
    x = 284,786.16

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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.