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Finding the Fourth Proportional to 179,658.88, 269,373.12 and 74,550.40

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Solution

The fourth proportional to 179,658.88, 269,373.12 and 74,550.40 is: 111,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,658.88 : 269,373.12 = 74,550.40 : x
  2. Step 2: Convert to fraction form
    179,658.88/269,373.12 = 74,550.40/x
  3. Step 3: Cross multiply
    179,658.88x = 269,373.12 × 74,550.40
  4. Step 4: Simplify right side
    179,658.88x = 20,081,873,845.25
  5. Step 5: Solve for x
    x = 20,081,873,845.25/179,658.88
  6. Step 6: Final answer
    x = 111,777.80

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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.