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Finding the Third Proportional to 161,860,840 and 356,006,722

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Solution

The third proportional to 161,860,840 and 356,006,722 is: 783,023,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,860,840 : 356,006,722 = 356,006,722 : x
  2. Step 2: Convert to fraction form
    161,860,840/356,006,722 = 356,006,722/x
  3. Step 3: Cross multiply
    161,860,840x = 356,006,722 × 356,006,722
  4. Step 4: Simplify right side
    161,860,840x = 126,740,786,109,185,280
  5. Step 5: Solve for x
    x = 126,740,786,109,185,280/161,860,840
  6. Step 6: Final answer
    x = 783,023,158.10

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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.