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Finding the Fourth Proportional to 376,145.46, 519,076.08 and 206,379.45

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Solution

The fourth proportional to 376,145.46, 519,076.08 and 206,379.45 is: 284,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,145.46 : 519,076.08 = 206,379.45 : x
  2. Step 2: Convert to fraction form
    376,145.46/519,076.08 = 206,379.45/x
  3. Step 3: Cross multiply
    376,145.46x = 519,076.08 × 206,379.45
  4. Step 4: Simplify right side
    376,145.46x = 107,126,635,898.56
  5. Step 5: Solve for x
    x = 107,126,635,898.56/376,145.46
  6. Step 6: Final answer
    x = 284,801.09

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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.