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Finding the Fourth Proportional to 189,636.11, 261,760.19 and 150,944.90

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Solution

The fourth proportional to 189,636.11, 261,760.19 and 150,944.90 is: 208,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,636.11 : 261,760.19 = 150,944.90 : x
  2. Step 2: Convert to fraction form
    189,636.11/261,760.19 = 150,944.90/x
  3. Step 3: Cross multiply
    189,636.11x = 261,760.19 × 150,944.90
  4. Step 4: Simplify right side
    189,636.11x = 39,511,365,961.47
  5. Step 5: Solve for x
    x = 39,511,365,961.47/189,636.11
  6. Step 6: Final answer
    x = 208,353.60

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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.