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Finding the Fourth Proportional to 111,107.60, 166,645.20 and 32,213.60

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Solution

The fourth proportional to 111,107.60, 166,645.20 and 32,213.60 is: 48,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,107.60 : 166,645.20 = 32,213.60 : x
  2. Step 2: Convert to fraction form
    111,107.60/166,645.20 = 32,213.60/x
  3. Step 3: Cross multiply
    111,107.60x = 166,645.20 × 32,213.60
  4. Step 4: Simplify right side
    111,107.60x = 5,368,241,814.72
  5. Step 5: Solve for x
    x = 5,368,241,814.72/111,107.60
  6. Step 6: Final answer
    x = 48,315.70

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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.