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Finding the Fourth Proportional to 266,220.04, 397,020.90 and 227,029

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Solution

The fourth proportional to 266,220.04, 397,020.90 and 227,029 is: 338,574.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,220.04 : 397,020.90 = 227,029 : x
  2. Step 2: Convert to fraction form
    266,220.04/397,020.90 = 227,029/x
  3. Step 3: Cross multiply
    266,220.04x = 397,020.90 × 227,029
  4. Step 4: Simplify right side
    266,220.04x = 90,135,257,906.10
  5. Step 5: Solve for x
    x = 90,135,257,906.10/266,220.04
  6. Step 6: Final answer
    x = 338,574.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.