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Finding the Third Proportional to 68,161.50 and 148,716

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Solution

The third proportional to 68,161.50 and 148,716 is: 324,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,161.50 : 148,716 = 148,716 : x
  2. Step 2: Convert to fraction form
    68,161.50/148,716 = 148,716/x
  3. Step 3: Cross multiply
    68,161.50x = 148,716 × 148,716
  4. Step 4: Simplify right side
    68,161.50x = 22,116,448,656
  5. Step 5: Solve for x
    x = 22,116,448,656/68,161.50
  6. Step 6: Final answer
    x = 324,471.27

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.