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Finding the Third Proportional to 191.06 and 292.31

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Solution

The third proportional to 191.06 and 292.31 is: 447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.06 : 292.31 = 292.31 : x
  2. Step 2: Convert to fraction form
    191.06/292.31 = 292.31/x
  3. Step 3: Cross multiply
    191.06x = 292.31 × 292.31
  4. Step 4: Simplify right side
    191.06x = 85,446.60
  5. Step 5: Solve for x
    x = 85,446.60/191.06
  6. Step 6: Final answer
    x = 447.22

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.