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Finding the Fourth Proportional to 263,411.40, 395,103.25 and 73,884.90

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Solution

The fourth proportional to 263,411.40, 395,103.25 and 73,884.90 is: 110,823.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,411.40 : 395,103.25 = 73,884.90 : x
  2. Step 2: Convert to fraction form
    263,411.40/395,103.25 = 73,884.90/x
  3. Step 3: Cross multiply
    263,411.40x = 395,103.25 × 73,884.90
  4. Step 4: Simplify right side
    263,411.40x = 29,192,164,115.93
  5. Step 5: Solve for x
    x = 29,192,164,115.93/263,411.40
  6. Step 6: Final answer
    x = 110,823.47

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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.