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Finding the Third Proportional to 79,473 and 168,423

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Solution

The third proportional to 79,473 and 168,423 is: 356,930.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,473 : 168,423 = 168,423 : x
  2. Step 2: Convert to fraction form
    79,473/168,423 = 168,423/x
  3. Step 3: Cross multiply
    79,473x = 168,423 × 168,423
  4. Step 4: Simplify right side
    79,473x = 28,366,306,929
  5. Step 5: Solve for x
    x = 28,366,306,929/79,473
  6. Step 6: Final answer
    x = 356,930.11

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.