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Finding the Fourth Proportional to 267,505.12, 401,310.13 and 99,026.74

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Solution

The fourth proportional to 267,505.12, 401,310.13 and 99,026.74 is: 148,559.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,505.12 : 401,310.13 = 99,026.74 : x
  2. Step 2: Convert to fraction form
    267,505.12/401,310.13 = 99,026.74/x
  3. Step 3: Cross multiply
    267,505.12x = 401,310.13 × 99,026.74
  4. Step 4: Simplify right side
    267,505.12x = 39,740,433,902.88
  5. Step 5: Solve for x
    x = 39,740,433,902.88/267,505.12
  6. Step 6: Final answer
    x = 148,559.53

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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.