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Finding the Fourth Proportional to 373,855.50, 515,922.75 and 204,091.38

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Solution

The fourth proportional to 373,855.50, 515,922.75 and 204,091.38 is: 281,647.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,855.50 : 515,922.75 = 204,091.38 : x
  2. Step 2: Convert to fraction form
    373,855.50/515,922.75 = 204,091.38/x
  3. Step 3: Cross multiply
    373,855.50x = 515,922.75 × 204,091.38
  4. Step 4: Simplify right side
    373,855.50x = 105,295,386,020.90
  5. Step 5: Solve for x
    x = 105,295,386,020.90/373,855.50
  6. Step 6: Final answer
    x = 281,647.28

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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.