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Finding the Fourth Proportional to 118,793.30, 163,934.74 and 71,046.65

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Solution

The fourth proportional to 118,793.30, 163,934.74 and 71,046.65 is: 98,044.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,793.30 : 163,934.74 = 71,046.65 : x
  2. Step 2: Convert to fraction form
    118,793.30/163,934.74 = 71,046.65/x
  3. Step 3: Cross multiply
    118,793.30x = 163,934.74 × 71,046.65
  4. Step 4: Simplify right side
    118,793.30x = 11,647,014,095.62
  5. Step 5: Solve for x
    x = 11,647,014,095.62/118,793.30
  6. Step 6: Final answer
    x = 98,044.37

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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.