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Finding the Fourth Proportional to 168,625.80, 252,938.70 and 89,893.80

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Solution

The fourth proportional to 168,625.80, 252,938.70 and 89,893.80 is: 134,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,625.80 : 252,938.70 = 89,893.80 : x
  2. Step 2: Convert to fraction form
    168,625.80/252,938.70 = 89,893.80/x
  3. Step 3: Cross multiply
    168,625.80x = 252,938.70 × 89,893.80
  4. Step 4: Simplify right side
    168,625.80x = 22,737,620,910.06
  5. Step 5: Solve for x
    x = 22,737,620,910.06/168,625.80
  6. Step 6: Final answer
    x = 134,840.70

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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.