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Finding the Third Proportional to 75,681 and 117,625

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Solution

The third proportional to 75,681 and 117,625 is: 182,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,681 : 117,625 = 117,625 : x
  2. Step 2: Convert to fraction form
    75,681/117,625 = 117,625/x
  3. Step 3: Cross multiply
    75,681x = 117,625 × 117,625
  4. Step 4: Simplify right side
    75,681x = 13,835,640,625
  5. Step 5: Solve for x
    x = 13,835,640,625/75,681
  6. Step 6: Final answer
    x = 182,815.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.