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Finding the Fourth Proportional to 145,833.62, 218,504.18 and 89,556.44

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Solution

The fourth proportional to 145,833.62, 218,504.18 and 89,556.44 is: 134,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,833.62 : 218,504.18 = 89,556.44 : x
  2. Step 2: Convert to fraction form
    145,833.62/218,504.18 = 89,556.44/x
  3. Step 3: Cross multiply
    145,833.62x = 218,504.18 × 89,556.44
  4. Step 4: Simplify right side
    145,833.62x = 19,568,456,485.92
  5. Step 5: Solve for x
    x = 19,568,456,485.92/145,833.62
  6. Step 6: Final answer
    x = 134,183.44

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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.