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Finding the Third Proportional to 71,776,456 and 157,448,989

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Solution

The third proportional to 71,776,456 and 157,448,989 is: 345,380,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,776,456 : 157,448,989 = 157,448,989 : x
  2. Step 2: Convert to fraction form
    71,776,456/157,448,989 = 157,448,989/x
  3. Step 3: Cross multiply
    71,776,456x = 157,448,989 × 157,448,989
  4. Step 4: Simplify right side
    71,776,456x = 24,790,184,137,122,120
  5. Step 5: Solve for x
    x = 24,790,184,137,122,120/71,776,456
  6. Step 6: Final answer
    x = 345,380,442.54

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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.