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Finding the Fourth Proportional to 239,820.94, 330,944.22 and 132,388.67

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Solution

The fourth proportional to 239,820.94, 330,944.22 and 132,388.67 is: 182,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,820.94 : 330,944.22 = 132,388.67 : x
  2. Step 2: Convert to fraction form
    239,820.94/330,944.22 = 132,388.67/x
  3. Step 3: Cross multiply
    239,820.94x = 330,944.22 × 132,388.67
  4. Step 4: Simplify right side
    239,820.94x = 43,813,265,129.99
  5. Step 5: Solve for x
    x = 43,813,265,129.99/239,820.94
  6. Step 6: Final answer
    x = 182,691.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.