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Finding the Fourth Proportional to 79,504.92, 109,719.42 and 43,696.20

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Solution

The fourth proportional to 79,504.92, 109,719.42 and 43,696.20 is: 60,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,504.92 : 109,719.42 = 43,696.20 : x
  2. Step 2: Convert to fraction form
    79,504.92/109,719.42 = 43,696.20/x
  3. Step 3: Cross multiply
    79,504.92x = 109,719.42 × 43,696.20
  4. Step 4: Simplify right side
    79,504.92x = 4,794,321,720.20
  5. Step 5: Solve for x
    x = 4,794,321,720.20/79,504.92
  6. Step 6: Final answer
    x = 60,302.20

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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.