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Finding the Third Proportional to 79,171,200 and 122,587,776

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Solution

The third proportional to 79,171,200 and 122,587,776 is: 189,813,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,171,200 : 122,587,776 = 122,587,776 : x
  2. Step 2: Convert to fraction form
    79,171,200/122,587,776 = 122,587,776/x
  3. Step 3: Cross multiply
    79,171,200x = 122,587,776 × 122,587,776
  4. Step 4: Simplify right side
    79,171,200x = 15,027,762,824,626,176
  5. Step 5: Solve for x
    x = 15,027,762,824,626,176/79,171,200
  6. Step 6: Final answer
    x = 189,813,503.20

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.