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Finding the Fourth Proportional to 118,794.62, 163,936.58 and 71,047.97

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Solution

The fourth proportional to 118,794.62, 163,936.58 and 71,047.97 is: 98,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,794.62 : 163,936.58 = 71,047.97 : x
  2. Step 2: Convert to fraction form
    118,794.62/163,936.58 = 71,047.97/x
  3. Step 3: Cross multiply
    118,794.62x = 163,936.58 × 71,047.97
  4. Step 4: Simplify right side
    118,794.62x = 11,647,361,272.34
  5. Step 5: Solve for x
    x = 11,647,361,272.34/118,794.62
  6. Step 6: Final answer
    x = 98,046.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.