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Finding the Fourth Proportional to 161,365.80, 222,687.67 and 89,745.86

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Solution

The fourth proportional to 161,365.80, 222,687.67 and 89,745.86 is: 123,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,365.80 : 222,687.67 = 89,745.86 : x
  2. Step 2: Convert to fraction form
    161,365.80/222,687.67 = 89,745.86/x
  3. Step 3: Cross multiply
    161,365.80x = 222,687.67 × 89,745.86
  4. Step 4: Simplify right side
    161,365.80x = 19,985,294,893.38
  5. Step 5: Solve for x
    x = 19,985,294,893.38/161,365.80
  6. Step 6: Final answer
    x = 123,850.87

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1.5x scale

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.