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Finding the Third Proportional to 87,330,921 and 131,060,319

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Solution

The third proportional to 87,330,921 and 131,060,319 is: 196,686,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,330,921 : 131,060,319 = 131,060,319 : x
  2. Step 2: Convert to fraction form
    87,330,921/131,060,319 = 131,060,319/x
  3. Step 3: Cross multiply
    87,330,921x = 131,060,319 × 131,060,319
  4. Step 4: Simplify right side
    87,330,921x = 17,176,807,216,381,760
  5. Step 5: Solve for x
    x = 17,176,807,216,381,760/87,330,921
  6. Step 6: Final answer
    x = 196,686,431.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.