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Finding the Fourth Proportional to 283,611.12, 425,418.12 and 73,234.56

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Solution

The fourth proportional to 283,611.12, 425,418.12 and 73,234.56 is: 109,852.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,611.12 : 425,418.12 = 73,234.56 : x
  2. Step 2: Convert to fraction form
    283,611.12/425,418.12 = 73,234.56/x
  3. Step 3: Cross multiply
    283,611.12x = 425,418.12 × 73,234.56
  4. Step 4: Simplify right side
    283,611.12x = 31,155,308,834.23
  5. Step 5: Solve for x
    x = 31,155,308,834.23/283,611.12
  6. Step 6: Final answer
    x = 109,852.21

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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.