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Finding the Fourth Proportional to 79,912.47, 110,274.92 and 49,696.94

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Solution

The fourth proportional to 79,912.47, 110,274.92 and 49,696.94 is: 68,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,912.47 : 110,274.92 = 49,696.94 : x
  2. Step 2: Convert to fraction form
    79,912.47/110,274.92 = 49,696.94/x
  3. Step 3: Cross multiply
    79,912.47x = 110,274.92 × 49,696.94
  4. Step 4: Simplify right side
    79,912.47x = 5,480,326,296.31
  5. Step 5: Solve for x
    x = 5,480,326,296.31/79,912.47
  6. Step 6: Final answer
    x = 68,579.11

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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.