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Finding the Fourth Proportional to 227,065.20, 339,941.70 and 220,504.20

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Solution

The fourth proportional to 227,065.20, 339,941.70 and 220,504.20 is: 330,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,065.20 : 339,941.70 = 220,504.20 : x
  2. Step 2: Convert to fraction form
    227,065.20/339,941.70 = 220,504.20/x
  3. Step 3: Cross multiply
    227,065.20x = 339,941.70 × 220,504.20
  4. Step 4: Simplify right side
    227,065.20x = 74,958,572,605.14
  5. Step 5: Solve for x
    x = 74,958,572,605.14/227,065.20
  6. Step 6: Final answer
    x = 330,119.16

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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.