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Finding the Third Proportional to 79,820.44 and 122,726.39

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Solution

The third proportional to 79,820.44 and 122,726.39 is: 188,695.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,820.44 : 122,726.39 = 122,726.39 : x
  2. Step 2: Convert to fraction form
    79,820.44/122,726.39 = 122,726.39/x
  3. Step 3: Cross multiply
    79,820.44x = 122,726.39 × 122,726.39
  4. Step 4: Simplify right side
    79,820.44x = 15,061,766,955.84
  5. Step 5: Solve for x
    x = 15,061,766,955.84/79,820.44
  6. Step 6: Final answer
    x = 188,695.62

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.