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Finding the Third Proportional to 91,620 and 193,076

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Solution

The third proportional to 91,620 and 193,076 is: 406,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,620 : 193,076 = 193,076 : x
  2. Step 2: Convert to fraction form
    91,620/193,076 = 193,076/x
  3. Step 3: Cross multiply
    91,620x = 193,076 × 193,076
  4. Step 4: Simplify right side
    91,620x = 37,278,341,776
  5. Step 5: Solve for x
    x = 37,278,341,776/91,620
  6. Step 6: Final answer
    x = 406,879.96

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.