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Finding the Third Proportional to 74,876 and 102,592

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Solution

The third proportional to 74,876 and 102,592 is: 140,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,876 : 102,592 = 102,592 : x
  2. Step 2: Convert to fraction form
    74,876/102,592 = 102,592/x
  3. Step 3: Cross multiply
    74,876x = 102,592 × 102,592
  4. Step 4: Simplify right side
    74,876x = 10,525,118,464
  5. Step 5: Solve for x
    x = 10,525,118,464/74,876
  6. Step 6: Final answer
    x = 140,567.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.