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Finding the Fourth Proportional to 251,279.20, 352,724 and 251,279.20

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Solution

The fourth proportional to 251,279.20, 352,724 and 251,279.20 is: 352,724

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,279.20 : 352,724 = 251,279.20 : x
  2. Step 2: Convert to fraction form
    251,279.20/352,724 = 251,279.20/x
  3. Step 3: Cross multiply
    251,279.20x = 352,724 × 251,279.20
  4. Step 4: Simplify right side
    251,279.20x = 88,632,204,540.80
  5. Step 5: Solve for x
    x = 88,632,204,540.80/251,279.20
  6. Step 6: Final answer
    x = 352,724

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.