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Finding the Third Proportional to 91 and 150.50

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Solution

The third proportional to 91 and 150.50 is: 248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91 : 150.50 = 150.50 : x
  2. Step 2: Convert to fraction form
    91/150.50 = 150.50/x
  3. Step 3: Cross multiply
    91x = 150.50 × 150.50
  4. Step 4: Simplify right side
    91x = 22,650.25
  5. Step 5: Solve for x
    x = 22,650.25/91
  6. Step 6: Final answer
    x = 248.90

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.