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Finding the Fourth Proportional to 228,676.11, 342,831 and 108,672.84

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Solution

The fourth proportional to 228,676.11, 342,831 and 108,672.84 is: 162,922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,676.11 : 342,831 = 108,672.84 : x
  2. Step 2: Convert to fraction form
    228,676.11/342,831 = 108,672.84/x
  3. Step 3: Cross multiply
    228,676.11x = 342,831 × 108,672.84
  4. Step 4: Simplify right side
    228,676.11x = 37,256,418,410.04
  5. Step 5: Solve for x
    x = 37,256,418,410.04/228,676.11
  6. Step 6: Final answer
    x = 162,922.22

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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.