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Finding the Third Proportional to 72,568,776 and 156,681,672

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Solution

The third proportional to 72,568,776 and 156,681,672 is: 338,288,003.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568,776 : 156,681,672 = 156,681,672 : x
  2. Step 2: Convert to fraction form
    72,568,776/156,681,672 = 156,681,672/x
  3. Step 3: Cross multiply
    72,568,776x = 156,681,672 × 156,681,672
  4. Step 4: Simplify right side
    72,568,776x = 24,549,146,340,715,584
  5. Step 5: Solve for x
    x = 24,549,146,340,715,584/72,568,776
  6. Step 6: Final answer
    x = 338,288,003.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.