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Finding the Fourth Proportional to 103,620.67, 155,227.59 and 53,733.37

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Solution

The fourth proportional to 103,620.67, 155,227.59 and 53,733.37 is: 80,494.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.67 : 155,227.59 = 53,733.37 : x
  2. Step 2: Convert to fraction form
    103,620.67/155,227.59 = 53,733.37/x
  3. Step 3: Cross multiply
    103,620.67x = 155,227.59 × 53,733.37
  4. Step 4: Simplify right side
    103,620.67x = 8,340,901,527.68
  5. Step 5: Solve for x
    x = 8,340,901,527.68/103,620.67
  6. Step 6: Final answer
    x = 80,494.57

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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.