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Finding the Fourth Proportional to 227,075.20, 339,956.70 and 220,514.20

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Solution

The fourth proportional to 227,075.20, 339,956.70 and 220,514.20 is: 330,134.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,075.20 : 339,956.70 = 220,514.20 : x
  2. Step 2: Convert to fraction form
    227,075.20/339,956.70 = 220,514.20/x
  3. Step 3: Cross multiply
    227,075.20x = 339,956.70 × 220,514.20
  4. Step 4: Simplify right side
    227,075.20x = 74,965,279,735.14
  5. Step 5: Solve for x
    x = 74,965,279,735.14/227,075.20
  6. Step 6: Final answer
    x = 330,134.16

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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.