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Finding the Third Proportional to 79,341,228 and 122,602,317

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Solution

The third proportional to 79,341,228 and 122,602,317 is: 189,451,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,341,228 : 122,602,317 = 122,602,317 : x
  2. Step 2: Convert to fraction form
    79,341,228/122,602,317 = 122,602,317/x
  3. Step 3: Cross multiply
    79,341,228x = 122,602,317 × 122,602,317
  4. Step 4: Simplify right side
    79,341,228x = 15,031,328,133,768,488
  5. Step 5: Solve for x
    x = 15,031,328,133,768,488/79,341,228
  6. Step 6: Final answer
    x = 189,451,669.87

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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.