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Finding the Fourth Proportional to 79,506.28, 109,719.26 and 43,696.90

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Solution

The fourth proportional to 79,506.28, 109,719.26 and 43,696.90 is: 60,302.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,506.28 : 109,719.26 = 43,696.90 : x
  2. Step 2: Convert to fraction form
    79,506.28/109,719.26 = 43,696.90/x
  3. Step 3: Cross multiply
    79,506.28x = 109,719.26 × 43,696.90
  4. Step 4: Simplify right side
    79,506.28x = 4,794,391,532.29
  5. Step 5: Solve for x
    x = 4,794,391,532.29/79,506.28
  6. Step 6: Final answer
    x = 60,302.05

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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.