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Finding the Third Proportional to 59,542,963 and 128,980,127

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Solution

The third proportional to 59,542,963 and 128,980,127 is: 279,392,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,542,963 : 128,980,127 = 128,980,127 : x
  2. Step 2: Convert to fraction form
    59,542,963/128,980,127 = 128,980,127/x
  3. Step 3: Cross multiply
    59,542,963x = 128,980,127 × 128,980,127
  4. Step 4: Simplify right side
    59,542,963x = 16,635,873,160,936,128
  5. Step 5: Solve for x
    x = 16,635,873,160,936,128/59,542,963
  6. Step 6: Final answer
    x = 279,392,766.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.