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Finding the Fourth Proportional to 101,761.21, 152,620.91 and 38,559.54

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Solution

The fourth proportional to 101,761.21, 152,620.91 and 38,559.54 is: 57,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,761.21 : 152,620.91 = 38,559.54 : x
  2. Step 2: Convert to fraction form
    101,761.21/152,620.91 = 38,559.54/x
  3. Step 3: Cross multiply
    101,761.21x = 152,620.91 × 38,559.54
  4. Step 4: Simplify right side
    101,761.21x = 5,884,992,608.11
  5. Step 5: Solve for x
    x = 5,884,992,608.11/101,761.21
  6. Step 6: Final answer
    x = 57,831.39

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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.