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Finding the Third Proportional to 117,012,856 and 252,007,280

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Solution

The third proportional to 117,012,856 and 252,007,280 is: 542,740,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,012,856 : 252,007,280 = 252,007,280 : x
  2. Step 2: Convert to fraction form
    117,012,856/252,007,280 = 252,007,280/x
  3. Step 3: Cross multiply
    117,012,856x = 252,007,280 × 252,007,280
  4. Step 4: Simplify right side
    117,012,856x = 63,507,669,172,998,400
  5. Step 5: Solve for x
    x = 63,507,669,172,998,400/117,012,856
  6. Step 6: Final answer
    x = 542,740,954.66

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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.