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Finding the Third Proportional to 191,835,054 and 421,933,860

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Solution

The third proportional to 191,835,054 and 421,933,860 is: 928,027,378.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,835,054 : 421,933,860 = 421,933,860 : x
  2. Step 2: Convert to fraction form
    191,835,054/421,933,860 = 421,933,860/x
  3. Step 3: Cross multiply
    191,835,054x = 421,933,860 × 421,933,860
  4. Step 4: Simplify right side
    191,835,054x = 178,028,182,214,499,584
  5. Step 5: Solve for x
    x = 178,028,182,214,499,584/191,835,054
  6. Step 6: Final answer
    x = 928,027,378.22

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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.