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Finding the Third Proportional to 79,712 and 119,100

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Solution

The third proportional to 79,712 and 119,100 is: 177,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,712 : 119,100 = 119,100 : x
  2. Step 2: Convert to fraction form
    79,712/119,100 = 119,100/x
  3. Step 3: Cross multiply
    79,712x = 119,100 × 119,100
  4. Step 4: Simplify right side
    79,712x = 14,184,810,000
  5. Step 5: Solve for x
    x = 14,184,810,000/79,712
  6. Step 6: Final answer
    x = 177,950.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.