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Finding the Fourth Proportional to 235,289.40, 352,942.38 and 75,370.20

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Solution

The fourth proportional to 235,289.40, 352,942.38 and 75,370.20 is: 113,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,289.40 : 352,942.38 = 75,370.20 : x
  2. Step 2: Convert to fraction form
    235,289.40/352,942.38 = 75,370.20/x
  3. Step 3: Cross multiply
    235,289.40x = 352,942.38 × 75,370.20
  4. Step 4: Simplify right side
    235,289.40x = 26,601,337,769.08
  5. Step 5: Solve for x
    x = 26,601,337,769.08/235,289.40
  6. Step 6: Final answer
    x = 113,057.95

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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.