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Finding the Fourth Proportional to 202,506.90, 303,760.35 and 199,007.70

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Solution

The fourth proportional to 202,506.90, 303,760.35 and 199,007.70 is: 298,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,506.90 : 303,760.35 = 199,007.70 : x
  2. Step 2: Convert to fraction form
    202,506.90/303,760.35 = 199,007.70/x
  3. Step 3: Cross multiply
    202,506.90x = 303,760.35 × 199,007.70
  4. Step 4: Simplify right side
    202,506.90x = 60,450,648,604.70
  5. Step 5: Solve for x
    x = 60,450,648,604.70/202,506.90
  6. Step 6: Final answer
    x = 298,511.55

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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.