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Finding the Fourth Proportional to 118,119.44, 177,243.96 and 47,979.92

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Solution

The fourth proportional to 118,119.44, 177,243.96 and 47,979.92 is: 71,996.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,119.44 : 177,243.96 = 47,979.92 : x
  2. Step 2: Convert to fraction form
    118,119.44/177,243.96 = 47,979.92/x
  3. Step 3: Cross multiply
    118,119.44x = 177,243.96 × 47,979.92
  4. Step 4: Simplify right side
    118,119.44x = 8,504,151,021.28
  5. Step 5: Solve for x
    x = 8,504,151,021.28/118,119.44
  6. Step 6: Final answer
    x = 71,996.20

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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.