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Finding the Third Proportional to 91,991,798 and 186,686,728

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Solution

The third proportional to 91,991,798 and 186,686,728 is: 378,859,150.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,991,798 : 186,686,728 = 186,686,728 : x
  2. Step 2: Convert to fraction form
    91,991,798/186,686,728 = 186,686,728/x
  3. Step 3: Cross multiply
    91,991,798x = 186,686,728 × 186,686,728
  4. Step 4: Simplify right side
    91,991,798x = 34,851,934,411,345,984
  5. Step 5: Solve for x
    x = 34,851,934,411,345,984/91,991,798
  6. Step 6: Final answer
    x = 378,859,150.15

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.