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Finding the Fourth Proportional to 131,993.76, 197,662.56 and 92,365.44

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Solution

The fourth proportional to 131,993.76, 197,662.56 and 92,365.44 is: 138,318.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,993.76 : 197,662.56 = 92,365.44 : x
  2. Step 2: Convert to fraction form
    131,993.76/197,662.56 = 92,365.44/x
  3. Step 3: Cross multiply
    131,993.76x = 197,662.56 × 92,365.44
  4. Step 4: Simplify right side
    131,993.76x = 18,257,189,325.93
  5. Step 5: Solve for x
    x = 18,257,189,325.93/131,993.76
  6. Step 6: Final answer
    x = 138,318.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.