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Finding the Fourth Proportional to 267,403.60, 401,105.40 and 109,745.20

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Solution

The fourth proportional to 267,403.60, 401,105.40 and 109,745.20 is: 164,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,403.60 : 401,105.40 = 109,745.20 : x
  2. Step 2: Convert to fraction form
    267,403.60/401,105.40 = 109,745.20/x
  3. Step 3: Cross multiply
    267,403.60x = 401,105.40 × 109,745.20
  4. Step 4: Simplify right side
    267,403.60x = 44,019,392,344.08
  5. Step 5: Solve for x
    x = 44,019,392,344.08/267,403.60
  6. Step 6: Final answer
    x = 164,617.80

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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.