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Finding the Fourth Proportional to 133,076.10, 199,614.15 and 126,515.10

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Solution

The fourth proportional to 133,076.10, 199,614.15 and 126,515.10 is: 189,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,076.10 : 199,614.15 = 126,515.10 : x
  2. Step 2: Convert to fraction form
    133,076.10/199,614.15 = 126,515.10/x
  3. Step 3: Cross multiply
    133,076.10x = 199,614.15 × 126,515.10
  4. Step 4: Simplify right side
    133,076.10x = 25,254,204,148.67
  5. Step 5: Solve for x
    x = 25,254,204,148.67/133,076.10
  6. Step 6: Final answer
    x = 189,772.65

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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.