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Finding the Third Proportional to 188,659 and 285,417

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Solution

The third proportional to 188,659 and 285,417 is: 431,799.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,659 : 285,417 = 285,417 : x
  2. Step 2: Convert to fraction form
    188,659/285,417 = 285,417/x
  3. Step 3: Cross multiply
    188,659x = 285,417 × 285,417
  4. Step 4: Simplify right side
    188,659x = 81,462,863,889
  5. Step 5: Solve for x
    x = 81,462,863,889/188,659
  6. Step 6: Final answer
    x = 431,799.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.