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Finding the Third Proportional to 84,721 and 176,464

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Solution

The third proportional to 84,721 and 176,464 is: 367,554.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,721 : 176,464 = 176,464 : x
  2. Step 2: Convert to fraction form
    84,721/176,464 = 176,464/x
  3. Step 3: Cross multiply
    84,721x = 176,464 × 176,464
  4. Step 4: Simplify right side
    84,721x = 31,139,543,296
  5. Step 5: Solve for x
    x = 31,139,543,296/84,721
  6. Step 6: Final answer
    x = 367,554.01

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.