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Finding the Fourth Proportional to 206,778.61, 310,169.54 and 113,233.33

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Solution

The fourth proportional to 206,778.61, 310,169.54 and 113,233.33 is: 169,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,778.61 : 310,169.54 = 113,233.33 : x
  2. Step 2: Convert to fraction form
    206,778.61/310,169.54 = 113,233.33/x
  3. Step 3: Cross multiply
    206,778.61x = 310,169.54 × 113,233.33
  4. Step 4: Simplify right side
    206,778.61x = 35,121,529,878.77
  5. Step 5: Solve for x
    x = 35,121,529,878.77/206,778.61
  6. Step 6: Final answer
    x = 169,850.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.