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Finding the Fourth Proportional to 283,642.20, 425,520.90 and 96,672.60

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Solution

The fourth proportional to 283,642.20, 425,520.90 and 96,672.60 is: 145,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,642.20 : 425,520.90 = 96,672.60 : x
  2. Step 2: Convert to fraction form
    283,642.20/425,520.90 = 96,672.60/x
  3. Step 3: Cross multiply
    283,642.20x = 425,520.90 × 96,672.60
  4. Step 4: Simplify right side
    283,642.20x = 41,136,211,757.34
  5. Step 5: Solve for x
    x = 41,136,211,757.34/283,642.20
  6. Step 6: Final answer
    x = 145,028.53

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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.