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Finding the Fourth Proportional to 354,309.54, 531,466.23 and 104,993.70

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Solution

The fourth proportional to 354,309.54, 531,466.23 and 104,993.70 is: 157,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,309.54 : 531,466.23 = 104,993.70 : x
  2. Step 2: Convert to fraction form
    354,309.54/531,466.23 = 104,993.70/x
  3. Step 3: Cross multiply
    354,309.54x = 531,466.23 × 104,993.70
  4. Step 4: Simplify right side
    354,309.54x = 55,800,605,912.75
  5. Step 5: Solve for x
    x = 55,800,605,912.75/354,309.54
  6. Step 6: Final answer
    x = 157,491.12

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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.