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Finding the Third Proportional to 86,858,136 and 190,930,716

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Solution

The third proportional to 86,858,136 and 190,930,716 is: 419,702,056.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,858,136 : 190,930,716 = 190,930,716 : x
  2. Step 2: Convert to fraction form
    86,858,136/190,930,716 = 190,930,716/x
  3. Step 3: Cross multiply
    86,858,136x = 190,930,716 × 190,930,716
  4. Step 4: Simplify right side
    86,858,136x = 36,454,538,312,272,656
  5. Step 5: Solve for x
    x = 36,454,538,312,272,656/86,858,136
  6. Step 6: Final answer
    x = 419,702,056.61

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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.