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Finding the Third Proportional to 163,513,860 and 356,058,120

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Solution

The third proportional to 163,513,860 and 356,058,120 is: 775,331,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,513,860 : 356,058,120 = 356,058,120 : x
  2. Step 2: Convert to fraction form
    163,513,860/356,058,120 = 356,058,120/x
  3. Step 3: Cross multiply
    163,513,860x = 356,058,120 × 356,058,120
  4. Step 4: Simplify right side
    163,513,860x = 126,777,384,817,934,400
  5. Step 5: Solve for x
    x = 126,777,384,817,934,400/163,513,860
  6. Step 6: Final answer
    x = 775,331,123.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.