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Finding the Third Proportional to 36,690,988 and 78,634,168

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Solution

The third proportional to 36,690,988 and 78,634,168 is: 168,524,553.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,690,988 : 78,634,168 = 78,634,168 : x
  2. Step 2: Convert to fraction form
    36,690,988/78,634,168 = 78,634,168/x
  3. Step 3: Cross multiply
    36,690,988x = 78,634,168 × 78,634,168
  4. Step 4: Simplify right side
    36,690,988x = 6,183,332,377,052,224
  5. Step 5: Solve for x
    x = 6,183,332,377,052,224/36,690,988
  6. Step 6: Final answer
    x = 168,524,553.69

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.