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Finding the Fourth Proportional to 260,937.75, 391,472.25 and 73,949.25

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Solution

The fourth proportional to 260,937.75, 391,472.25 and 73,949.25 is: 110,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,937.75 : 391,472.25 = 73,949.25 : x
  2. Step 2: Convert to fraction form
    260,937.75/391,472.25 = 73,949.25/x
  3. Step 3: Cross multiply
    260,937.75x = 391,472.25 × 73,949.25
  4. Step 4: Simplify right side
    260,937.75x = 28,949,079,283.31
  5. Step 5: Solve for x
    x = 28,949,079,283.31/260,937.75
  6. Step 6: Final answer
    x = 110,942.47

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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.