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Finding the Fourth Proportional to 267,770.16, 401,375.02 and 90,215.80

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Solution

The fourth proportional to 267,770.16, 401,375.02 and 90,215.80 is: 135,229.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,770.16 : 401,375.02 = 90,215.80 : x
  2. Step 2: Convert to fraction form
    267,770.16/401,375.02 = 90,215.80/x
  3. Step 3: Cross multiply
    267,770.16x = 401,375.02 × 90,215.80
  4. Step 4: Simplify right side
    267,770.16x = 36,210,368,529.32
  5. Step 5: Solve for x
    x = 36,210,368,529.32/267,770.16
  6. Step 6: Final answer
    x = 135,229.29

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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.