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Finding the Fourth Proportional to 111,289.28, 166,939.65 and 32,409.63

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Solution

The fourth proportional to 111,289.28, 166,939.65 and 32,409.63 is: 48,616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,289.28 : 166,939.65 = 32,409.63 : x
  2. Step 2: Convert to fraction form
    111,289.28/166,939.65 = 32,409.63/x
  3. Step 3: Cross multiply
    111,289.28x = 166,939.65 × 32,409.63
  4. Step 4: Simplify right side
    111,289.28x = 5,410,452,288.83
  5. Step 5: Solve for x
    x = 5,410,452,288.83/111,289.28
  6. Step 6: Final answer
    x = 48,616.12

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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.