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Finding the Fourth Proportional to 150,019.40, 224,769.90 and 126,691.40

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Solution

The fourth proportional to 150,019.40, 224,769.90 and 126,691.40 is: 189,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,019.40 : 224,769.90 = 126,691.40 : x
  2. Step 2: Convert to fraction form
    150,019.40/224,769.90 = 126,691.40/x
  3. Step 3: Cross multiply
    150,019.40x = 224,769.90 × 126,691.40
  4. Step 4: Simplify right side
    150,019.40x = 28,476,413,308.86
  5. Step 5: Solve for x
    x = 28,476,413,308.86/150,019.40
  6. Step 6: Final answer
    x = 189,818.21

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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.