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Finding the Fourth Proportional to 267,751.11, 401,626.71 and 90,243.30

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Solution

The fourth proportional to 267,751.11, 401,626.71 and 90,243.30 is: 135,364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,751.11 : 401,626.71 = 90,243.30 : x
  2. Step 2: Convert to fraction form
    267,751.11/401,626.71 = 90,243.30/x
  3. Step 3: Cross multiply
    267,751.11x = 401,626.71 × 90,243.30
  4. Step 4: Simplify right side
    267,751.11x = 36,244,119,678.54
  5. Step 5: Solve for x
    x = 36,244,119,678.54/267,751.11
  6. Step 6: Final answer
    x = 135,364.97

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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.