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Finding the Fourth Proportional to 72,568.58, 108,844.70 and 25,174.94

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Solution

The fourth proportional to 72,568.58, 108,844.70 and 25,174.94 is: 37,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568.58 : 108,844.70 = 25,174.94 : x
  2. Step 2: Convert to fraction form
    72,568.58/108,844.70 = 25,174.94/x
  3. Step 3: Cross multiply
    72,568.58x = 108,844.70 × 25,174.94
  4. Step 4: Simplify right side
    72,568.58x = 2,740,158,121.72
  5. Step 5: Solve for x
    x = 2,740,158,121.72/72,568.58
  6. Step 6: Final answer
    x = 37,759.57

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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.