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Finding the Fourth Proportional to 204,890.70, 307,336.05 and 200,954.10

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Solution

The fourth proportional to 204,890.70, 307,336.05 and 200,954.10 is: 301,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,890.70 : 307,336.05 = 200,954.10 : x
  2. Step 2: Convert to fraction form
    204,890.70/307,336.05 = 200,954.10/x
  3. Step 3: Cross multiply
    204,890.70x = 307,336.05 × 200,954.10
  4. Step 4: Simplify right side
    204,890.70x = 61,760,439,325.31
  5. Step 5: Solve for x
    x = 61,760,439,325.31/204,890.70
  6. Step 6: Final answer
    x = 301,431.15

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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.