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Finding the Third Proportional to 142,521,411 and 305,198,214

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Solution

The third proportional to 142,521,411 and 305,198,214 is: 653,557,589.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,521,411 : 305,198,214 = 305,198,214 : x
  2. Step 2: Convert to fraction form
    142,521,411/305,198,214 = 305,198,214/x
  3. Step 3: Cross multiply
    142,521,411x = 305,198,214 × 305,198,214
  4. Step 4: Simplify right side
    142,521,411x = 93,145,949,828,789,792
  5. Step 5: Solve for x
    x = 93,145,949,828,789,792/142,521,411
  6. Step 6: Final answer
    x = 653,557,589.52

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.