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Finding the Fourth Proportional to 263,622.83, 395,167.94 and 103,810.91

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Solution

The fourth proportional to 263,622.83, 395,167.94 and 103,810.91 is: 155,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,622.83 : 395,167.94 = 103,810.91 : x
  2. Step 2: Convert to fraction form
    263,622.83/395,167.94 = 103,810.91/x
  3. Step 3: Cross multiply
    263,622.83x = 395,167.94 × 103,810.91
  4. Step 4: Simplify right side
    263,622.83x = 41,022,741,737.91
  5. Step 5: Solve for x
    x = 41,022,741,737.91/263,622.83
  6. Step 6: Final answer
    x = 155,611.49

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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.