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Finding the Third Proportional to 76,561,005 and 168,002,355

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Solution

The third proportional to 76,561,005 and 168,002,355 is: 368,657,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,561,005 : 168,002,355 = 168,002,355 : x
  2. Step 2: Convert to fraction form
    76,561,005/168,002,355 = 168,002,355/x
  3. Step 3: Cross multiply
    76,561,005x = 168,002,355 × 168,002,355
  4. Step 4: Simplify right side
    76,561,005x = 28,224,791,285,546,024
  5. Step 5: Solve for x
    x = 28,224,791,285,546,024/76,561,005
  6. Step 6: Final answer
    x = 368,657,533.76

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.