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Finding the Fourth Proportional to 92,105.81, 138,143.27 and 25,552.67

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Solution

The fourth proportional to 92,105.81, 138,143.27 and 25,552.67 is: 38,324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,105.81 : 138,143.27 = 25,552.67 : x
  2. Step 2: Convert to fraction form
    92,105.81/138,143.27 = 25,552.67/x
  3. Step 3: Cross multiply
    92,105.81x = 138,143.27 × 25,552.67
  4. Step 4: Simplify right side
    92,105.81x = 3,529,928,764.20
  5. Step 5: Solve for x
    x = 3,529,928,764.20/92,105.81
  6. Step 6: Final answer
    x = 38,324.71

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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.