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Finding the Third Proportional to 79,246,778 and 172,562,207

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Solution

The third proportional to 79,246,778 and 172,562,207 is: 375,759,318.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,246,778 : 172,562,207 = 172,562,207 : x
  2. Step 2: Convert to fraction form
    79,246,778/172,562,207 = 172,562,207/x
  3. Step 3: Cross multiply
    79,246,778x = 172,562,207 × 172,562,207
  4. Step 4: Simplify right side
    79,246,778x = 29,777,715,284,710,848
  5. Step 5: Solve for x
    x = 29,777,715,284,710,848/79,246,778
  6. Step 6: Final answer
    x = 375,759,318.38

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.