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Finding the Third Proportional to 155,190 and 247,953

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Solution

The third proportional to 155,190 and 247,953 is: 396,163.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,190 : 247,953 = 247,953 : x
  2. Step 2: Convert to fraction form
    155,190/247,953 = 247,953/x
  3. Step 3: Cross multiply
    155,190x = 247,953 × 247,953
  4. Step 4: Simplify right side
    155,190x = 61,480,690,209
  5. Step 5: Solve for x
    x = 61,480,690,209/155,190
  6. Step 6: Final answer
    x = 396,163.99

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.