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Finding the Fourth Proportional to 376,049.82, 518,948.85 and 206,283.95

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Solution

The fourth proportional to 376,049.82, 518,948.85 and 206,283.95 is: 284,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,049.82 : 518,948.85 = 206,283.95 : x
  2. Step 2: Convert to fraction form
    376,049.82/518,948.85 = 206,283.95/x
  3. Step 3: Cross multiply
    376,049.82x = 518,948.85 × 206,283.95
  4. Step 4: Simplify right side
    376,049.82x = 107,050,816,031.21
  5. Step 5: Solve for x
    x = 107,050,816,031.21/376,049.82
  6. Step 6: Final answer
    x = 284,671.90

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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.