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Finding the Third Proportional to 212,581,686 and 303,992,173

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Solution

The third proportional to 212,581,686 and 303,992,173 is: 434,709,325.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,581,686 : 303,992,173 = 303,992,173 : x
  2. Step 2: Convert to fraction form
    212,581,686/303,992,173 = 303,992,173/x
  3. Step 3: Cross multiply
    212,581,686x = 303,992,173 × 303,992,173
  4. Step 4: Simplify right side
    212,581,686x = 92,411,241,245,261,936
  5. Step 5: Solve for x
    x = 92,411,241,245,261,936/212,581,686
  6. Step 6: Final answer
    x = 434,709,325.08

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.