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Finding the Fourth Proportional to 240,591.75, 332,104.10 and 139,989.75

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Solution

The fourth proportional to 240,591.75, 332,104.10 and 139,989.75 is: 193,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,591.75 : 332,104.10 = 139,989.75 : x
  2. Step 2: Convert to fraction form
    240,591.75/332,104.10 = 139,989.75/x
  3. Step 3: Cross multiply
    240,591.75x = 332,104.10 × 139,989.75
  4. Step 4: Simplify right side
    240,591.75x = 46,491,169,233.03
  5. Step 5: Solve for x
    x = 46,491,169,233.03/240,591.75
  6. Step 6: Final answer
    x = 193,236.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.