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Finding the Fourth Proportional to 267,434.70, 401,152.05 and 89,923.20

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Solution

The fourth proportional to 267,434.70, 401,152.05 and 89,923.20 is: 134,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,434.70 : 401,152.05 = 89,923.20 : x
  2. Step 2: Convert to fraction form
    267,434.70/401,152.05 = 89,923.20/x
  3. Step 3: Cross multiply
    267,434.70x = 401,152.05 × 89,923.20
  4. Step 4: Simplify right side
    267,434.70x = 36,072,876,022.56
  5. Step 5: Solve for x
    x = 36,072,876,022.56/267,434.70
  6. Step 6: Final answer
    x = 134,884.80

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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.