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Finding the Fourth Proportional to 267,505.89, 401,311.25 and 99,027.64

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Solution

The fourth proportional to 267,505.89, 401,311.25 and 99,027.64 is: 148,560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,505.89 : 401,311.25 = 99,027.64 : x
  2. Step 2: Convert to fraction form
    267,505.89/401,311.25 = 99,027.64/x
  3. Step 3: Cross multiply
    267,505.89x = 401,311.25 × 99,027.64
  4. Step 4: Simplify right side
    267,505.89x = 39,740,905,992.95
  5. Step 5: Solve for x
    x = 39,740,905,992.95/267,505.89
  6. Step 6: Final answer
    x = 148,560.86

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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.