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Finding the Third Proportional to 92,510 and 122,985

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Solution

The third proportional to 92,510 and 122,985 is: 163,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,510 : 122,985 = 122,985 : x
  2. Step 2: Convert to fraction form
    92,510/122,985 = 122,985/x
  3. Step 3: Cross multiply
    92,510x = 122,985 × 122,985
  4. Step 4: Simplify right side
    92,510x = 15,125,310,225
  5. Step 5: Solve for x
    x = 15,125,310,225/92,510
  6. Step 6: Final answer
    x = 163,499.19

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.