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Finding the Fourth Proportional to 79,187.78, 118,698.44 and 29,236.02

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Solution

The fourth proportional to 79,187.78, 118,698.44 and 29,236.02 is: 43,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,187.78 : 118,698.44 = 29,236.02 : x
  2. Step 2: Convert to fraction form
    79,187.78/118,698.44 = 29,236.02/x
  3. Step 3: Cross multiply
    79,187.78x = 118,698.44 × 29,236.02
  4. Step 4: Simplify right side
    79,187.78x = 3,470,269,819.63
  5. Step 5: Solve for x
    x = 3,470,269,819.63/79,187.78
  6. Step 6: Final answer
    x = 43,823.30

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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.