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Finding the Fourth Proportional to 267,436.33, 401,155.13 and 67,756.75

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Solution

The fourth proportional to 267,436.33, 401,155.13 and 67,756.75 is: 101,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,436.33 : 401,155.13 = 67,756.75 : x
  2. Step 2: Convert to fraction form
    267,436.33/401,155.13 = 67,756.75/x
  3. Step 3: Cross multiply
    267,436.33x = 401,155.13 × 67,756.75
  4. Step 4: Simplify right side
    267,436.33x = 27,180,967,854.63
  5. Step 5: Solve for x
    x = 27,180,967,854.63/267,436.33
  6. Step 6: Final answer
    x = 101,635.29

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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.