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Finding the Fourth Proportional to 79,085.36, 118,629.48 and 26,494.64

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Solution

The fourth proportional to 79,085.36, 118,629.48 and 26,494.64 is: 39,742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,085.36 : 118,629.48 = 26,494.64 : x
  2. Step 2: Convert to fraction form
    79,085.36/118,629.48 = 26,494.64/x
  3. Step 3: Cross multiply
    79,085.36x = 118,629.48 × 26,494.64
  4. Step 4: Simplify right side
    79,085.36x = 3,143,045,365.99
  5. Step 5: Solve for x
    x = 3,143,045,365.99/79,085.36
  6. Step 6: Final answer
    x = 39,742.44

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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.