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Finding the Third Proportional to 191,835,057 and 421,933,866

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Solution

The third proportional to 191,835,057 and 421,933,866 is: 928,027,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,835,057 : 421,933,866 = 421,933,866 : x
  2. Step 2: Convert to fraction form
    191,835,057/421,933,866 = 421,933,866/x
  3. Step 3: Cross multiply
    191,835,057x = 421,933,866 × 421,933,866
  4. Step 4: Simplify right side
    191,835,057x = 178,028,187,277,705,952
  5. Step 5: Solve for x
    x = 178,028,187,277,705,952/191,835,057
  6. Step 6: Final answer
    x = 928,027,390.10

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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.