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Finding the Third Proportional to 88,888 and 187,768

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Solution

The third proportional to 88,888 and 187,768 is: 396,643.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,888 : 187,768 = 187,768 : x
  2. Step 2: Convert to fraction form
    88,888/187,768 = 187,768/x
  3. Step 3: Cross multiply
    88,888x = 187,768 × 187,768
  4. Step 4: Simplify right side
    88,888x = 35,256,821,824
  5. Step 5: Solve for x
    x = 35,256,821,824/88,888
  6. Step 6: Final answer
    x = 396,643.21

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.