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Finding the Fourth Proportional to 279,941.46, 419,912.19 and 92,952.96

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Solution

The fourth proportional to 279,941.46, 419,912.19 and 92,952.96 is: 139,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,941.46 : 419,912.19 = 92,952.96 : x
  2. Step 2: Convert to fraction form
    279,941.46/419,912.19 = 92,952.96/x
  3. Step 3: Cross multiply
    279,941.46x = 419,912.19 × 92,952.96
  4. Step 4: Simplify right side
    279,941.46x = 39,032,081,000.58
  5. Step 5: Solve for x
    x = 39,032,081,000.58/279,941.46
  6. Step 6: Final answer
    x = 139,429.44

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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.