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Finding the Third Proportional to 56,911,972 and 122,455,691

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Solution

The third proportional to 56,911,972 and 122,455,691 is: 263,484,039.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,911,972 : 122,455,691 = 122,455,691 : x
  2. Step 2: Convert to fraction form
    56,911,972/122,455,691 = 122,455,691/x
  3. Step 3: Cross multiply
    56,911,972x = 122,455,691 × 122,455,691
  4. Step 4: Simplify right side
    56,911,972x = 14,995,396,258,287,480
  5. Step 5: Solve for x
    x = 14,995,396,258,287,480/56,911,972
  6. Step 6: Final answer
    x = 263,484,039.15

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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.