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Finding the Fourth Proportional to 111,012.96, 166,481.64 and 36,114.48

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Solution

The fourth proportional to 111,012.96, 166,481.64 and 36,114.48 is: 54,159.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,012.96 : 166,481.64 = 36,114.48 : x
  2. Step 2: Convert to fraction form
    111,012.96/166,481.64 = 36,114.48/x
  3. Step 3: Cross multiply
    111,012.96x = 166,481.64 × 36,114.48
  4. Step 4: Simplify right side
    111,012.96x = 6,012,397,858.15
  5. Step 5: Solve for x
    x = 6,012,397,858.15/111,012.96
  6. Step 6: Final answer
    x = 54,159.42

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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.