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Finding the Third Proportional to 72,412,632 and 157,577,760

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Solution

The third proportional to 72,412,632 and 157,577,760 is: 342,906,337.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,412,632 : 157,577,760 = 157,577,760 : x
  2. Step 2: Convert to fraction form
    72,412,632/157,577,760 = 157,577,760/x
  3. Step 3: Cross multiply
    72,412,632x = 157,577,760 × 157,577,760
  4. Step 4: Simplify right side
    72,412,632x = 24,830,750,446,617,600
  5. Step 5: Solve for x
    x = 24,830,750,446,617,600/72,412,632
  6. Step 6: Final answer
    x = 342,906,337.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.