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Finding the Fourth Proportional to 96,645.81, 145,025.21 and 40,481.14

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Solution

The fourth proportional to 96,645.81, 145,025.21 and 40,481.14 is: 60,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,645.81 : 145,025.21 = 40,481.14 : x
  2. Step 2: Convert to fraction form
    96,645.81/145,025.21 = 40,481.14/x
  3. Step 3: Cross multiply
    96,645.81x = 145,025.21 × 40,481.14
  4. Step 4: Simplify right side
    96,645.81x = 5,870,786,134.13
  5. Step 5: Solve for x
    x = 5,870,786,134.13/96,645.81
  6. Step 6: Final answer
    x = 60,745.38

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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.