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Finding the Third Proportional to 71,648,845 and 156,712,406

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Solution

The third proportional to 71,648,845 and 156,712,406 is: 342,765,863.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,648,845 : 156,712,406 = 156,712,406 : x
  2. Step 2: Convert to fraction form
    71,648,845/156,712,406 = 156,712,406/x
  3. Step 3: Cross multiply
    71,648,845x = 156,712,406 × 156,712,406
  4. Step 4: Simplify right side
    71,648,845x = 24,558,778,194,308,836
  5. Step 5: Solve for x
    x = 24,558,778,194,308,836/71,648,845
  6. Step 6: Final answer
    x = 342,765,863.07

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.