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Finding the Third Proportional to 79,986 and 122,026.50

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Solution

The third proportional to 79,986 and 122,026.50 is: 186,163.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,986 : 122,026.50 = 122,026.50 : x
  2. Step 2: Convert to fraction form
    79,986/122,026.50 = 122,026.50/x
  3. Step 3: Cross multiply
    79,986x = 122,026.50 × 122,026.50
  4. Step 4: Simplify right side
    79,986x = 14,890,466,702.25
  5. Step 5: Solve for x
    x = 14,890,466,702.25/79,986
  6. Step 6: Final answer
    x = 186,163.41

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.