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Finding the Third Proportional to 72,388,844 and 157,783,480

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Solution

The third proportional to 72,388,844 and 157,783,480 is: 343,915,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,388,844 : 157,783,480 = 157,783,480 : x
  2. Step 2: Convert to fraction form
    72,388,844/157,783,480 = 157,783,480/x
  3. Step 3: Cross multiply
    72,388,844x = 157,783,480 × 157,783,480
  4. Step 4: Simplify right side
    72,388,844x = 24,895,626,560,910,400
  5. Step 5: Solve for x
    x = 24,895,626,560,910,400/72,388,844
  6. Step 6: Final answer
    x = 343,915,238.66

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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.