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Finding the Fourth Proportional to 267,762.77, 401,363.94 and 90,208.44

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Solution

The fourth proportional to 267,762.77, 401,363.94 and 90,208.44 is: 135,218.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,762.77 : 401,363.94 = 90,208.44 : x
  2. Step 2: Convert to fraction form
    267,762.77/401,363.94 = 90,208.44/x
  3. Step 3: Cross multiply
    267,762.77x = 401,363.94 × 90,208.44
  4. Step 4: Simplify right side
    267,762.77x = 36,206,414,899.65
  5. Step 5: Solve for x
    x = 36,206,414,899.65/267,762.77
  6. Step 6: Final answer
    x = 135,218.26

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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.