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Finding the Fourth Proportional to 189,892.30, 262,083.60 and 109,366.44

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Solution

The fourth proportional to 189,892.30, 262,083.60 and 109,366.44 is: 150,944.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,892.30 : 262,083.60 = 109,366.44 : x
  2. Step 2: Convert to fraction form
    189,892.30/262,083.60 = 109,366.44/x
  3. Step 3: Cross multiply
    189,892.30x = 262,083.60 × 109,366.44
  4. Step 4: Simplify right side
    189,892.30x = 28,663,150,314.38
  5. Step 5: Solve for x
    x = 28,663,150,314.38/189,892.30
  6. Step 6: Final answer
    x = 150,944.25

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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.