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Finding the Fourth Proportional to 60,408.70, 90,625.20 and 50,615.80

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Solution

The fourth proportional to 60,408.70, 90,625.20 and 50,615.80 is: 75,933.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,408.70 : 90,625.20 = 50,615.80 : x
  2. Step 2: Convert to fraction form
    60,408.70/90,625.20 = 50,615.80/x
  3. Step 3: Cross multiply
    60,408.70x = 90,625.20 × 50,615.80
  4. Step 4: Simplify right side
    60,408.70x = 4,587,066,998.16
  5. Step 5: Solve for x
    x = 4,587,066,998.16/60,408.70
  6. Step 6: Final answer
    x = 75,933.88

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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.