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Finding the Fourth Proportional to 161,595, 222,996.60 and 89,974.98

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Solution

The fourth proportional to 161,595, 222,996.60 and 89,974.98 is: 124,162.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,595 : 222,996.60 = 89,974.98 : x
  2. Step 2: Convert to fraction form
    161,595/222,996.60 = 89,974.98/x
  3. Step 3: Cross multiply
    161,595x = 222,996.60 × 89,974.98
  4. Step 4: Simplify right side
    161,595x = 20,064,114,625.07
  5. Step 5: Solve for x
    x = 20,064,114,625.07/161,595
  6. Step 6: Final answer
    x = 124,162.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.