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Finding the Third Proportional to 176,078 and 379,676

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Solution

The third proportional to 176,078 and 379,676 is: 818,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,078 : 379,676 = 379,676 : x
  2. Step 2: Convert to fraction form
    176,078/379,676 = 379,676/x
  3. Step 3: Cross multiply
    176,078x = 379,676 × 379,676
  4. Step 4: Simplify right side
    176,078x = 144,153,864,976
  5. Step 5: Solve for x
    x = 144,153,864,976/176,078
  6. Step 6: Final answer
    x = 818,693.22

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.