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Finding the Third Proportional to 122,872,380 and 263,979,354

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Solution

The third proportional to 122,872,380 and 263,979,354 is: 567,133,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,872,380 : 263,979,354 = 263,979,354 : x
  2. Step 2: Convert to fraction form
    122,872,380/263,979,354 = 263,979,354/x
  3. Step 3: Cross multiply
    122,872,380x = 263,979,354 × 263,979,354
  4. Step 4: Simplify right side
    122,872,380x = 69,685,099,338,257,312
  5. Step 5: Solve for x
    x = 69,685,099,338,257,312/122,872,380
  6. Step 6: Final answer
    x = 567,133,959.14

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.