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Finding the Fourth Proportional to 323,097.75, 446,248.31 and 215,481.15

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Solution

The fourth proportional to 323,097.75, 446,248.31 and 215,481.15 is: 297,613.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,097.75 : 446,248.31 = 215,481.15 : x
  2. Step 2: Convert to fraction form
    323,097.75/446,248.31 = 215,481.15/x
  3. Step 3: Cross multiply
    323,097.75x = 446,248.31 × 215,481.15
  4. Step 4: Simplify right side
    323,097.75x = 96,158,097,946.95
  5. Step 5: Solve for x
    x = 96,158,097,946.95/323,097.75
  6. Step 6: Final answer
    x = 297,613.02

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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.