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Finding the Third Proportional to 77,991.75 and 125,600.63

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Solution

The third proportional to 77,991.75 and 125,600.63 is: 202,271.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,991.75 : 125,600.63 = 125,600.63 : x
  2. Step 2: Convert to fraction form
    77,991.75/125,600.63 = 125,600.63/x
  3. Step 3: Cross multiply
    77,991.75x = 125,600.63 × 125,600.63
  4. Step 4: Simplify right side
    77,991.75x = 15,775,517,000.39
  5. Step 5: Solve for x
    x = 15,775,517,000.39/77,991.75
  6. Step 6: Final answer
    x = 202,271.61

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.