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Finding the Fourth Proportional to 118,474.62, 177,743.09 and 42,580.83

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Solution

The fourth proportional to 118,474.62, 177,743.09 and 42,580.83 is: 63,882.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,474.62 : 177,743.09 = 42,580.83 : x
  2. Step 2: Convert to fraction form
    118,474.62/177,743.09 = 42,580.83/x
  3. Step 3: Cross multiply
    118,474.62x = 177,743.09 × 42,580.83
  4. Step 4: Simplify right side
    118,474.62x = 7,568,448,086.06
  5. Step 5: Solve for x
    x = 7,568,448,086.06/118,474.62
  6. Step 6: Final answer
    x = 63,882.44

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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.