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Finding the Third Proportional to 100,434 and 155,514

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Solution

The third proportional to 100,434 and 155,514 is: 240,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,434 : 155,514 = 155,514 : x
  2. Step 2: Convert to fraction form
    100,434/155,514 = 155,514/x
  3. Step 3: Cross multiply
    100,434x = 155,514 × 155,514
  4. Step 4: Simplify right side
    100,434x = 24,184,604,196
  5. Step 5: Solve for x
    x = 24,184,604,196/100,434
  6. Step 6: Final answer
    x = 240,800.97

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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.