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Finding the Fourth Proportional to 298,223.92, 411,553.23 and 162,257.96

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Solution

The fourth proportional to 298,223.92, 411,553.23 and 162,257.96 is: 223,918.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,223.92 : 411,553.23 = 162,257.96 : x
  2. Step 2: Convert to fraction form
    298,223.92/411,553.23 = 162,257.96/x
  3. Step 3: Cross multiply
    298,223.92x = 411,553.23 × 162,257.96
  4. Step 4: Simplify right side
    298,223.92x = 66,777,787,531.21
  5. Step 5: Solve for x
    x = 66,777,787,531.21/298,223.92
  6. Step 6: Final answer
    x = 223,918.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.