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Finding the Third Proportional to 100,570.75 and 149,115.13

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Solution

The third proportional to 100,570.75 and 149,115.13 is: 221,091.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,570.75 : 149,115.13 = 149,115.13 : x
  2. Step 2: Convert to fraction form
    100,570.75/149,115.13 = 149,115.13/x
  3. Step 3: Cross multiply
    100,570.75x = 149,115.13 × 149,115.13
  4. Step 4: Simplify right side
    100,570.75x = 22,235,320,503.77
  5. Step 5: Solve for x
    x = 22,235,320,503.77/100,570.75
  6. Step 6: Final answer
    x = 221,091.33

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.