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Finding the Fourth Proportional to 216,506.08, 324,676.02 and 74,324.86

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Solution

The fourth proportional to 216,506.08, 324,676.02 and 74,324.86 is: 111,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,506.08 : 324,676.02 = 74,324.86 : x
  2. Step 2: Convert to fraction form
    216,506.08/324,676.02 = 74,324.86/x
  3. Step 3: Cross multiply
    216,506.08x = 324,676.02 × 74,324.86
  4. Step 4: Simplify right side
    216,506.08x = 24,131,499,731.86
  5. Step 5: Solve for x
    x = 24,131,499,731.86/216,506.08
  6. Step 6: Final answer
    x = 111,458.76

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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.