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Finding the Fourth Proportional to 337,205.19, 505,796.09 and 84,487.89

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Solution

The fourth proportional to 337,205.19, 505,796.09 and 84,487.89 is: 126,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,205.19 : 505,796.09 = 84,487.89 : x
  2. Step 2: Convert to fraction form
    337,205.19/505,796.09 = 84,487.89/x
  3. Step 3: Cross multiply
    337,205.19x = 505,796.09 × 84,487.89
  4. Step 4: Simplify right side
    337,205.19x = 42,733,643,991.91
  5. Step 5: Solve for x
    x = 42,733,643,991.91/337,205.19
  6. Step 6: Final answer
    x = 126,728.90

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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.