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Finding the Fourth Proportional to 79,504.05, 109,718.48 and 43,696.79

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Solution

The fourth proportional to 79,504.05, 109,718.48 and 43,696.79 is: 60,303.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,504.05 : 109,718.48 = 43,696.79 : x
  2. Step 2: Convert to fraction form
    79,504.05/109,718.48 = 43,696.79/x
  3. Step 3: Cross multiply
    79,504.05x = 109,718.48 × 43,696.79
  4. Step 4: Simplify right side
    79,504.05x = 4,794,345,379.68
  5. Step 5: Solve for x
    x = 4,794,345,379.68/79,504.05
  6. Step 6: Final answer
    x = 60,303.16

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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.