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Finding the Fourth Proportional to 356,893.89, 534,865.15 and 188,374.60

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Solution

The fourth proportional to 356,893.89, 534,865.15 and 188,374.60 is: 282,310.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,893.89 : 534,865.15 = 188,374.60 : x
  2. Step 2: Convert to fraction form
    356,893.89/534,865.15 = 188,374.60/x
  3. Step 3: Cross multiply
    356,893.89x = 534,865.15 × 188,374.60
  4. Step 4: Simplify right side
    356,893.89x = 100,755,008,685.19
  5. Step 5: Solve for x
    x = 100,755,008,685.19/356,893.89
  6. Step 6: Final answer
    x = 282,310.83

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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.