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Finding the Fourth Proportional to 79,231.44, 118,763.52 and 29,279.52

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Solution

The fourth proportional to 79,231.44, 118,763.52 and 29,279.52 is: 43,888.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,231.44 : 118,763.52 = 29,279.52 : x
  2. Step 2: Convert to fraction form
    79,231.44/118,763.52 = 29,279.52/x
  3. Step 3: Cross multiply
    79,231.44x = 118,763.52 × 29,279.52
  4. Step 4: Simplify right side
    79,231.44x = 3,477,338,859.11
  5. Step 5: Solve for x
    x = 3,477,338,859.11/79,231.44
  6. Step 6: Final answer
    x = 43,888.37

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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.