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Finding the Fourth Proportional to 118,076.94, 177,069.42 and 39,169.98

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Solution

The fourth proportional to 118,076.94, 177,069.42 and 39,169.98 is: 58,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,076.94 : 177,069.42 = 39,169.98 : x
  2. Step 2: Convert to fraction form
    118,076.94/177,069.42 = 39,169.98/x
  3. Step 3: Cross multiply
    118,076.94x = 177,069.42 × 39,169.98
  4. Step 4: Simplify right side
    118,076.94x = 6,935,805,640.01
  5. Step 5: Solve for x
    x = 6,935,805,640.01/118,076.94
  6. Step 6: Final answer
    x = 58,739.71

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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.