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Finding the Fourth Proportional to 223,813.67, 335,687.36 and 81,625.59

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Solution

The fourth proportional to 223,813.67, 335,687.36 and 81,625.59 is: 122,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,813.67 : 335,687.36 = 81,625.59 : x
  2. Step 2: Convert to fraction form
    223,813.67/335,687.36 = 81,625.59/x
  3. Step 3: Cross multiply
    223,813.67x = 335,687.36 × 81,625.59
  4. Step 4: Simplify right side
    223,813.67x = 27,400,678,407.41
  5. Step 5: Solve for x
    x = 27,400,678,407.41/223,813.67
  6. Step 6: Final answer
    x = 122,426.30

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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.