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Finding the Fourth Proportional to 267,438.38, 401,158.01 and 67,758.59

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Solution

The fourth proportional to 267,438.38, 401,158.01 and 67,758.59 is: 101,637.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,438.38 : 401,158.01 = 67,758.59 : x
  2. Step 2: Convert to fraction form
    267,438.38/401,158.01 = 67,758.59/x
  3. Step 3: Cross multiply
    267,438.38x = 401,158.01 × 67,758.59
  4. Step 4: Simplify right side
    267,438.38x = 27,181,898,780.22
  5. Step 5: Solve for x
    x = 27,181,898,780.22/267,438.38
  6. Step 6: Final answer
    x = 101,637.99

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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.