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Finding the Fourth Proportional to 118,939.44, 164,124.60 and 68,654.64

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Solution

The fourth proportional to 118,939.44, 164,124.60 and 68,654.64 is: 94,736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,939.44 : 164,124.60 = 68,654.64 : x
  2. Step 2: Convert to fraction form
    118,939.44/164,124.60 = 68,654.64/x
  3. Step 3: Cross multiply
    118,939.44x = 164,124.60 × 68,654.64
  4. Step 4: Simplify right side
    118,939.44x = 11,267,915,328.14
  5. Step 5: Solve for x
    x = 11,267,915,328.14/118,939.44
  6. Step 6: Final answer
    x = 94,736.58

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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.