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Finding the Third Proportional to 92,700 and 138,681

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Solution

The third proportional to 92,700 and 138,681 is: 207,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,700 : 138,681 = 138,681 : x
  2. Step 2: Convert to fraction form
    92,700/138,681 = 138,681/x
  3. Step 3: Cross multiply
    92,700x = 138,681 × 138,681
  4. Step 4: Simplify right side
    92,700x = 19,232,419,761
  5. Step 5: Solve for x
    x = 19,232,419,761/92,700
  6. Step 6: Final answer
    x = 207,469.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.