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Finding the Third Proportional to 173 and 192.50

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Solution

The third proportional to 173 and 192.50 is: 214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173 : 192.50 = 192.50 : x
  2. Step 2: Convert to fraction form
    173/192.50 = 192.50/x
  3. Step 3: Cross multiply
    173x = 192.50 × 192.50
  4. Step 4: Simplify right side
    173x = 37,056.25
  5. Step 5: Solve for x
    x = 37,056.25/173
  6. Step 6: Final answer
    x = 214.20

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.