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Finding the Third Proportional to 78,920 and 119,196

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Solution

The third proportional to 78,920 and 119,196 is: 180,026.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,920 : 119,196 = 119,196 : x
  2. Step 2: Convert to fraction form
    78,920/119,196 = 119,196/x
  3. Step 3: Cross multiply
    78,920x = 119,196 × 119,196
  4. Step 4: Simplify right side
    78,920x = 14,207,686,416
  5. Step 5: Solve for x
    x = 14,207,686,416/78,920
  6. Step 6: Final answer
    x = 180,026.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.