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Finding the Fourth Proportional to 235,930.70, 331,236.10 and 235,930.70

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Solution

The fourth proportional to 235,930.70, 331,236.10 and 235,930.70 is: 331,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,930.70 : 331,236.10 = 235,930.70 : x
  2. Step 2: Convert to fraction form
    235,930.70/331,236.10 = 235,930.70/x
  3. Step 3: Cross multiply
    235,930.70x = 331,236.10 × 235,930.70
  4. Step 4: Simplify right side
    235,930.70x = 78,148,764,938.27
  5. Step 5: Solve for x
    x = 78,148,764,938.27/235,930.70
  6. Step 6: Final answer
    x = 331,236.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.