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Finding the Fourth Proportional to 120,793.68, 166,668.44 and 73,046.00

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Solution

The fourth proportional to 120,793.68, 166,668.44 and 73,046.00 is: 100,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,793.68 : 166,668.44 = 73,046.00 : x
  2. Step 2: Convert to fraction form
    120,793.68/166,668.44 = 73,046.00/x
  3. Step 3: Cross multiply
    120,793.68x = 166,668.44 × 73,046.00
  4. Step 4: Simplify right side
    120,793.68x = 12,174,462,919.68
  5. Step 5: Solve for x
    x = 12,174,462,919.68/120,793.68
  6. Step 6: Final answer
    x = 100,787.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.