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Finding the Third Proportional to 156 and 237.25

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Solution

The third proportional to 156 and 237.25 is: 360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156 : 237.25 = 237.25 : x
  2. Step 2: Convert to fraction form
    156/237.25 = 237.25/x
  3. Step 3: Cross multiply
    156x = 237.25 × 237.25
  4. Step 4: Simplify right side
    156x = 56,287.56
  5. Step 5: Solve for x
    x = 56,287.56/156
  6. Step 6: Final answer
    x = 360.82

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.