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Finding the Fourth Proportional to 303,213.30, 453,945.15 and 185,115.30

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Solution

The fourth proportional to 303,213.30, 453,945.15 and 185,115.30 is: 277,138.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,213.30 : 453,945.15 = 185,115.30 : x
  2. Step 2: Convert to fraction form
    303,213.30/453,945.15 = 185,115.30/x
  3. Step 3: Cross multiply
    303,213.30x = 453,945.15 × 185,115.30
  4. Step 4: Simplify right side
    303,213.30x = 84,032,192,625.80
  5. Step 5: Solve for x
    x = 84,032,192,625.80/303,213.30
  6. Step 6: Final answer
    x = 277,138.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.