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Finding the Third Proportional to 91,940,078 and 197,828,968

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Solution

The third proportional to 91,940,078 and 197,828,968 is: 425,671,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,940,078 : 197,828,968 = 197,828,968 : x
  2. Step 2: Convert to fraction form
    91,940,078/197,828,968 = 197,828,968/x
  3. Step 3: Cross multiply
    91,940,078x = 197,828,968 × 197,828,968
  4. Step 4: Simplify right side
    91,940,078x = 39,136,300,579,945,024
  5. Step 5: Solve for x
    x = 39,136,300,579,945,024/91,940,078
  6. Step 6: Final answer
    x = 425,671,822.68

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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.