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Finding the Fourth Proportional to 103,635.22, 155,249.44 and 53,747.93

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Solution

The fourth proportional to 103,635.22, 155,249.44 and 53,747.93 is: 80,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,635.22 : 155,249.44 = 53,747.93 : x
  2. Step 2: Convert to fraction form
    103,635.22/155,249.44 = 53,747.93/x
  3. Step 3: Cross multiply
    103,635.22x = 155,249.44 × 53,747.93
  4. Step 4: Simplify right side
    103,635.22x = 8,344,336,033.66
  5. Step 5: Solve for x
    x = 8,344,336,033.66/103,635.22
  6. Step 6: Final answer
    x = 80,516.41

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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.