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Finding the Fourth Proportional to 228,489.30, 342,793.08 and 133,799.49

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Solution

The fourth proportional to 228,489.30, 342,793.08 and 133,799.49 is: 200,733.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,489.30 : 342,793.08 = 133,799.49 : x
  2. Step 2: Convert to fraction form
    228,489.30/342,793.08 = 133,799.49/x
  3. Step 3: Cross multiply
    228,489.30x = 342,793.08 × 133,799.49
  4. Step 4: Simplify right side
    228,489.30x = 45,865,539,279.53
  5. Step 5: Solve for x
    x = 45,865,539,279.53/228,489.30
  6. Step 6: Final answer
    x = 200,733.86

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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.