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Finding the Fourth Proportional to 267,087.15, 400,690.71 and 89,589.60

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Solution

The fourth proportional to 267,087.15, 400,690.71 and 89,589.60 is: 134,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,087.15 : 400,690.71 = 89,589.60 : x
  2. Step 2: Convert to fraction form
    267,087.15/400,690.71 = 89,589.60/x
  3. Step 3: Cross multiply
    267,087.15x = 400,690.71 × 89,589.60
  4. Step 4: Simplify right side
    267,087.15x = 35,897,720,432.62
  5. Step 5: Solve for x
    x = 35,897,720,432.62/267,087.15
  6. Step 6: Final answer
    x = 134,404.52

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1.5x scale

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.