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Finding the Third Proportional to 90,405,582 and 196,222,973

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Solution

The third proportional to 90,405,582 and 196,222,973 is: 425,896,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,405,582 : 196,222,973 = 196,222,973 : x
  2. Step 2: Convert to fraction form
    90,405,582/196,222,973 = 196,222,973/x
  3. Step 3: Cross multiply
    90,405,582x = 196,222,973 × 196,222,973
  4. Step 4: Simplify right side
    90,405,582x = 38,503,455,132,958,728
  5. Step 5: Solve for x
    x = 38,503,455,132,958,728/90,405,582
  6. Step 6: Final answer
    x = 425,896,878.06

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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.