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Finding the Fourth Proportional to 267,716.62, 401,588.24 and 87,820.18

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Solution

The fourth proportional to 267,716.62, 401,588.24 and 87,820.18 is: 131,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,716.62 : 401,588.24 = 87,820.18 : x
  2. Step 2: Convert to fraction form
    267,716.62/401,588.24 = 87,820.18/x
  3. Step 3: Cross multiply
    267,716.62x = 401,588.24 × 87,820.18
  4. Step 4: Simplify right side
    267,716.62x = 35,267,551,522.68
  5. Step 5: Solve for x
    x = 35,267,551,522.68/267,716.62
  6. Step 6: Final answer
    x = 131,734.64

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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.