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Finding the Fourth Proportional to 307,928.66, 461,542.83 and 130,324.82

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Solution

The fourth proportional to 307,928.66, 461,542.83 and 130,324.82 is: 195,339.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,928.66 : 461,542.83 = 130,324.82 : x
  2. Step 2: Convert to fraction form
    307,928.66/461,542.83 = 130,324.82/x
  3. Step 3: Cross multiply
    307,928.66x = 461,542.83 × 130,324.82
  4. Step 4: Simplify right side
    307,928.66x = 60,150,486,242.04
  5. Step 5: Solve for x
    x = 60,150,486,242.04/307,928.66
  6. Step 6: Final answer
    x = 195,339.03

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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.