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Finding the Third Proportional to 86,658,194 and 190,319,908

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Solution

The third proportional to 86,658,194 and 190,319,908 is: 417,983,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,658,194 : 190,319,908 = 190,319,908 : x
  2. Step 2: Convert to fraction form
    86,658,194/190,319,908 = 190,319,908/x
  3. Step 3: Cross multiply
    86,658,194x = 190,319,908 × 190,319,908
  4. Step 4: Simplify right side
    86,658,194x = 36,221,667,381,128,464
  5. Step 5: Solve for x
    x = 36,221,667,381,128,464/86,658,194
  6. Step 6: Final answer
    x = 417,983,178.61

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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.