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Finding the Third Proportional to 101,991.38 and 168,554.25

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Solution

The third proportional to 101,991.38 and 168,554.25 is: 278,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,991.38 : 168,554.25 = 168,554.25 : x
  2. Step 2: Convert to fraction form
    101,991.38/168,554.25 = 168,554.25/x
  3. Step 3: Cross multiply
    101,991.38x = 168,554.25 × 168,554.25
  4. Step 4: Simplify right side
    101,991.38x = 28,410,535,193.06
  5. Step 5: Solve for x
    x = 28,410,535,193.06/101,991.38
  6. Step 6: Final answer
    x = 278,558.21

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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.