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Finding the Fourth Proportional to 161,375.16, 222,692.16 and 89,753.76

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Solution

The fourth proportional to 161,375.16, 222,692.16 and 89,753.76 is: 123,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,375.16 : 222,692.16 = 89,753.76 : x
  2. Step 2: Convert to fraction form
    161,375.16/222,692.16 = 89,753.76/x
  3. Step 3: Cross multiply
    161,375.16x = 222,692.16 × 89,753.76
  4. Step 4: Simplify right side
    161,375.16x = 19,987,458,682.52
  5. Step 5: Solve for x
    x = 19,987,458,682.52/161,375.16
  6. Step 6: Final answer
    x = 123,857.10

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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.