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Finding the Fourth Proportional to 291,930.75, 437,893.50 and 92,251.17

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Solution

The fourth proportional to 291,930.75, 437,893.50 and 92,251.17 is: 138,375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,930.75 : 437,893.50 = 92,251.17 : x
  2. Step 2: Convert to fraction form
    291,930.75/437,893.50 = 92,251.17/x
  3. Step 3: Cross multiply
    291,930.75x = 437,893.50 × 92,251.17
  4. Step 4: Simplify right side
    291,930.75x = 40,396,187,710.40
  5. Step 5: Solve for x
    x = 40,396,187,710.40/291,930.75
  6. Step 6: Final answer
    x = 138,375.93

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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.