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Finding the Third Proportional to 71,330 and 110,388

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Solution

The third proportional to 71,330 and 110,388 is: 170,832.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,330 : 110,388 = 110,388 : x
  2. Step 2: Convert to fraction form
    71,330/110,388 = 110,388/x
  3. Step 3: Cross multiply
    71,330x = 110,388 × 110,388
  4. Step 4: Simplify right side
    71,330x = 12,185,510,544
  5. Step 5: Solve for x
    x = 12,185,510,544/71,330
  6. Step 6: Final answer
    x = 170,832.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.