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Finding the Third Proportional to 121,605,097,037 and 261,511,343,023

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Solution

The third proportional to 121,605,097,037 and 261,511,343,023 is: 562,379,243,929.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,605,097,037 : 261,511,343,023 = 261,511,343,023 : x
  2. Step 2: Convert to fraction form
    121,605,097,037/261,511,343,023 = 261,511,343,023/x
  3. Step 3: Cross multiply
    121,605,097,037x = 261,511,343,023 × 261,511,343,023
  4. Step 4: Simplify right side
    121,605,097,037x = 68,388,182,529,693,171,318,784
  5. Step 5: Solve for x
    x = 68,388,182,529,693,171,318,784/121,605,097,037
  6. Step 6: Final answer
    x = 562,379,243,929.93

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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.