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Finding the Fourth Proportional to 118,682, 163,799.48 and 67,694.84

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Solution

The fourth proportional to 118,682, 163,799.48 and 67,694.84 is: 93,429.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,682 : 163,799.48 = 67,694.84 : x
  2. Step 2: Convert to fraction form
    118,682/163,799.48 = 67,694.84/x
  3. Step 3: Cross multiply
    118,682x = 163,799.48 × 67,694.84
  4. Step 4: Simplify right side
    118,682x = 11,088,379,590.68
  5. Step 5: Solve for x
    x = 11,088,379,590.68/118,682
  6. Step 6: Final answer
    x = 93,429.33

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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.