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Finding the Fourth Proportional to 111,145.37, 166,731.75 and 36,245.48

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Solution

The fourth proportional to 111,145.37, 166,731.75 and 36,245.48 is: 54,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,145.37 : 166,731.75 = 36,245.48 : x
  2. Step 2: Convert to fraction form
    111,145.37/166,731.75 = 36,245.48/x
  3. Step 3: Cross multiply
    111,145.37x = 166,731.75 × 36,245.48
  4. Step 4: Simplify right side
    111,145.37x = 6,043,271,476.33
  5. Step 5: Solve for x
    x = 6,043,271,476.33/111,145.37
  6. Step 6: Final answer
    x = 54,372.68

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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.