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Finding the Third Proportional to 92,078 and 198,646

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Solution

The third proportional to 92,078 and 198,646 is: 428,552.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,078 : 198,646 = 198,646 : x
  2. Step 2: Convert to fraction form
    92,078/198,646 = 198,646/x
  3. Step 3: Cross multiply
    92,078x = 198,646 × 198,646
  4. Step 4: Simplify right side
    92,078x = 39,460,233,316
  5. Step 5: Solve for x
    x = 39,460,233,316/92,078
  6. Step 6: Final answer
    x = 428,552.24

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.