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Finding the Fourth Proportional to 324,183.70, 485,866.51 and 164,299.81

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Solution

The fourth proportional to 324,183.70, 485,866.51 and 164,299.81 is: 246,242.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,183.70 : 485,866.51 = 164,299.81 : x
  2. Step 2: Convert to fraction form
    324,183.70/485,866.51 = 164,299.81/x
  3. Step 3: Cross multiply
    324,183.70x = 485,866.51 × 164,299.81
  4. Step 4: Simplify right side
    324,183.70x = 79,827,775,278.36
  5. Step 5: Solve for x
    x = 79,827,775,278.36/324,183.70
  6. Step 6: Final answer
    x = 246,242.41

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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.