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Finding the Fourth Proportional to 267,358.87, 401,038.60 and 67,679.24

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Solution

The fourth proportional to 267,358.87, 401,038.60 and 67,679.24 is: 101,518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,358.87 : 401,038.60 = 67,679.24 : x
  2. Step 2: Convert to fraction form
    267,358.87/401,038.60 = 67,679.24/x
  3. Step 3: Cross multiply
    267,358.87x = 401,038.60 × 67,679.24
  4. Step 4: Simplify right side
    267,358.87x = 27,141,987,658.66
  5. Step 5: Solve for x
    x = 27,141,987,658.66/267,358.87
  6. Step 6: Final answer
    x = 101,518.94

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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.