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Finding the Third Proportional to 71,971,255 and 156,721,070

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Solution

The third proportional to 71,971,255 and 156,721,070 is: 341,268,104.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,971,255 : 156,721,070 = 156,721,070 : x
  2. Step 2: Convert to fraction form
    71,971,255/156,721,070 = 156,721,070/x
  3. Step 3: Cross multiply
    71,971,255x = 156,721,070 × 156,721,070
  4. Step 4: Simplify right side
    71,971,255x = 24,561,493,781,944,900
  5. Step 5: Solve for x
    x = 24,561,493,781,944,900/71,971,255
  6. Step 6: Final answer
    x = 341,268,104.63

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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.