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Finding the Third Proportional to 124,608 and 198,368

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Solution

The third proportional to 124,608 and 198,368 is: 315,789.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,608 : 198,368 = 198,368 : x
  2. Step 2: Convert to fraction form
    124,608/198,368 = 198,368/x
  3. Step 3: Cross multiply
    124,608x = 198,368 × 198,368
  4. Step 4: Simplify right side
    124,608x = 39,349,863,424
  5. Step 5: Solve for x
    x = 39,349,863,424/124,608
  6. Step 6: Final answer
    x = 315,789.22

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.