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Finding the Fourth Proportional to 79,071.88, 118,608.78 and 26,481.52

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Solution

The fourth proportional to 79,071.88, 118,608.78 and 26,481.52 is: 39,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,071.88 : 118,608.78 = 26,481.52 : x
  2. Step 2: Convert to fraction form
    79,071.88/118,608.78 = 26,481.52/x
  3. Step 3: Cross multiply
    79,071.88x = 118,608.78 × 26,481.52
  4. Step 4: Simplify right side
    79,071.88x = 3,140,940,779.75
  5. Step 5: Solve for x
    x = 3,140,940,779.75/79,071.88
  6. Step 6: Final answer
    x = 39,722.60

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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.