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Finding the Third Proportional to 79,341,230 and 122,602,320

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Solution

The third proportional to 79,341,230 and 122,602,320 is: 189,451,674.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,341,230 : 122,602,320 = 122,602,320 : x
  2. Step 2: Convert to fraction form
    79,341,230/122,602,320 = 122,602,320/x
  3. Step 3: Cross multiply
    79,341,230x = 122,602,320 × 122,602,320
  4. Step 4: Simplify right side
    79,341,230x = 15,031,328,869,382,400
  5. Step 5: Solve for x
    x = 15,031,328,869,382,400/79,341,230
  6. Step 6: Final answer
    x = 189,451,674.36

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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.