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Finding the Fourth Proportional to 267,644.22, 401,467.04 and 90,275.69

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Solution

The fourth proportional to 267,644.22, 401,467.04 and 90,275.69 is: 135,413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,644.22 : 401,467.04 = 90,275.69 : x
  2. Step 2: Convert to fraction form
    267,644.22/401,467.04 = 90,275.69/x
  3. Step 3: Cross multiply
    267,644.22x = 401,467.04 × 90,275.69
  4. Step 4: Simplify right side
    267,644.22x = 36,242,711,589.54
  5. Step 5: Solve for x
    x = 36,242,711,589.54/267,644.22
  6. Step 6: Final answer
    x = 135,413.77

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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.