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Finding the Fourth Proportional to 231,187.72, 346,793.58 and 73,428.52

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Solution

The fourth proportional to 231,187.72, 346,793.58 and 73,428.52 is: 110,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,187.72 : 346,793.58 = 73,428.52 : x
  2. Step 2: Convert to fraction form
    231,187.72/346,793.58 = 73,428.52/x
  3. Step 3: Cross multiply
    231,187.72x = 346,793.58 × 73,428.52
  4. Step 4: Simplify right side
    231,187.72x = 25,464,539,324.90
  5. Step 5: Solve for x
    x = 25,464,539,324.90/231,187.72
  6. Step 6: Final answer
    x = 110,146.59

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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.