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Finding the Fourth Proportional to 118,793.72, 163,894.32 and 67,769.66

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Solution

The fourth proportional to 118,793.72, 163,894.32 and 67,769.66 is: 93,498.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,793.72 : 163,894.32 = 67,769.66 : x
  2. Step 2: Convert to fraction form
    118,793.72/163,894.32 = 67,769.66/x
  3. Step 3: Cross multiply
    118,793.72x = 163,894.32 × 67,769.66
  4. Step 4: Simplify right side
    118,793.72x = 11,107,062,752.07
  5. Step 5: Solve for x
    x = 11,107,062,752.07/118,793.72
  6. Step 6: Final answer
    x = 93,498.73

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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.