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Finding the Third Proportional to 99,498,760 and 215,294,988

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Solution

The third proportional to 99,498,760 and 215,294,988 is: 465,854,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,498,760 : 215,294,988 = 215,294,988 : x
  2. Step 2: Convert to fraction form
    99,498,760/215,294,988 = 215,294,988/x
  3. Step 3: Cross multiply
    99,498,760x = 215,294,988 × 215,294,988
  4. Step 4: Simplify right side
    99,498,760x = 46,351,931,857,920,144
  5. Step 5: Solve for x
    x = 46,351,931,857,920,144/99,498,760
  6. Step 6: Final answer
    x = 465,854,367.01

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.