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Finding the Fourth Proportional to 229,321.20, 343,690.20 and 204,243.60

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Solution

The fourth proportional to 229,321.20, 343,690.20 and 204,243.60 is: 306,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,321.20 : 343,690.20 = 204,243.60 : x
  2. Step 2: Convert to fraction form
    229,321.20/343,690.20 = 204,243.60/x
  3. Step 3: Cross multiply
    229,321.20x = 343,690.20 × 204,243.60
  4. Step 4: Simplify right side
    229,321.20x = 70,196,523,732.72
  5. Step 5: Solve for x
    x = 70,196,523,732.72/229,321.20
  6. Step 6: Final answer
    x = 306,105.69

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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.