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Finding the Third Proportional to 74,380 and 163,523

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Solution

The third proportional to 74,380 and 163,523 is: 359,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,380 : 163,523 = 163,523 : x
  2. Step 2: Convert to fraction form
    74,380/163,523 = 163,523/x
  3. Step 3: Cross multiply
    74,380x = 163,523 × 163,523
  4. Step 4: Simplify right side
    74,380x = 26,739,771,529
  5. Step 5: Solve for x
    x = 26,739,771,529/74,380
  6. Step 6: Final answer
    x = 359,502.17

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.