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Finding the Fourth Proportional to 111,147.80, 166,608.30 and 54,901.40

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Solution

The fourth proportional to 111,147.80, 166,608.30 and 54,901.40 is: 82,296.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,147.80 : 166,608.30 = 54,901.40 : x
  2. Step 2: Convert to fraction form
    111,147.80/166,608.30 = 54,901.40/x
  3. Step 3: Cross multiply
    111,147.80x = 166,608.30 × 54,901.40
  4. Step 4: Simplify right side
    111,147.80x = 9,147,028,921.62
  5. Step 5: Solve for x
    x = 9,147,028,921.62/111,147.80
  6. Step 6: Final answer
    x = 82,296.09

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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.