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Finding the Third Proportional to 81,980 and 120,054

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Solution

The third proportional to 81,980 and 120,054 is: 175,810.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,980 : 120,054 = 120,054 : x
  2. Step 2: Convert to fraction form
    81,980/120,054 = 120,054/x
  3. Step 3: Cross multiply
    81,980x = 120,054 × 120,054
  4. Step 4: Simplify right side
    81,980x = 14,412,962,916
  5. Step 5: Solve for x
    x = 14,412,962,916/81,980
  6. Step 6: Final answer
    x = 175,810.72

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These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.