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Finding the Fourth Proportional to 79,198.54, 118,815.54 and 26,606.59

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Solution

The fourth proportional to 79,198.54, 118,815.54 and 26,606.59 is: 39,915.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,198.54 : 118,815.54 = 26,606.59 : x
  2. Step 2: Convert to fraction form
    79,198.54/118,815.54 = 26,606.59/x
  3. Step 3: Cross multiply
    79,198.54x = 118,815.54 × 26,606.59
  4. Step 4: Simplify right side
    79,198.54x = 3,161,276,358.41
  5. Step 5: Solve for x
    x = 3,161,276,358.41/79,198.54
  6. Step 6: Final answer
    x = 39,915.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.