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Finding the Third Proportional to 74,125 and 163,012

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Solution

The third proportional to 74,125 and 163,012 is: 358,487.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,125 : 163,012 = 163,012 : x
  2. Step 2: Convert to fraction form
    74,125/163,012 = 163,012/x
  3. Step 3: Cross multiply
    74,125x = 163,012 × 163,012
  4. Step 4: Simplify right side
    74,125x = 26,572,912,144
  5. Step 5: Solve for x
    x = 26,572,912,144/74,125
  6. Step 6: Final answer
    x = 358,487.85

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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.