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Finding the Fourth Proportional to 283,393.67, 425,146.56 and 80,991.59

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Solution

The fourth proportional to 283,393.67, 425,146.56 and 80,991.59 is: 121,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,393.67 : 425,146.56 = 80,991.59 : x
  2. Step 2: Convert to fraction form
    283,393.67/425,146.56 = 80,991.59/x
  3. Step 3: Cross multiply
    283,393.67x = 425,146.56 × 80,991.59
  4. Step 4: Simplify right side
    283,393.67x = 34,433,295,877.43
  5. Step 5: Solve for x
    x = 34,433,295,877.43/283,393.67
  6. Step 6: Final answer
    x = 121,503.41

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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.