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Finding the Third Proportional to 156,931,589 and 215,424,232

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Solution

The third proportional to 156,931,589 and 215,424,232 is: 295,718,663.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,931,589 : 215,424,232 = 215,424,232 : x
  2. Step 2: Convert to fraction form
    156,931,589/215,424,232 = 215,424,232/x
  3. Step 3: Cross multiply
    156,931,589x = 215,424,232 × 215,424,232
  4. Step 4: Simplify right side
    156,931,589x = 46,407,599,732,789,824
  5. Step 5: Solve for x
    x = 46,407,599,732,789,824/156,931,589
  6. Step 6: Final answer
    x = 295,718,663.33

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.