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Finding the Third Proportional to 43,163,690 and 90,318,196

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Solution

The third proportional to 43,163,690 and 90,318,196 is: 188,987,005.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,163,690 : 90,318,196 = 90,318,196 : x
  2. Step 2: Convert to fraction form
    43,163,690/90,318,196 = 90,318,196/x
  3. Step 3: Cross multiply
    43,163,690x = 90,318,196 × 90,318,196
  4. Step 4: Simplify right side
    43,163,690x = 8,157,376,528,694,416
  5. Step 5: Solve for x
    x = 8,157,376,528,694,416/43,163,690
  6. Step 6: Final answer
    x = 188,987,005.71

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.