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Finding the Fourth Proportional to 143,334.75, 215,003.42 and 43,494.94

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Solution

The fourth proportional to 143,334.75, 215,003.42 and 43,494.94 is: 65,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,334.75 : 215,003.42 = 43,494.94 : x
  2. Step 2: Convert to fraction form
    143,334.75/215,003.42 = 43,494.94/x
  3. Step 3: Cross multiply
    143,334.75x = 215,003.42 × 43,494.94
  4. Step 4: Simplify right side
    143,334.75x = 9,351,560,340.05
  5. Step 5: Solve for x
    x = 9,351,560,340.05/143,334.75
  6. Step 6: Final answer
    x = 65,242.80

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1.5x scale

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.