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Finding the Fourth Proportional to 78,898.44, 118,348.74 and 22,739.52

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Solution

The fourth proportional to 78,898.44, 118,348.74 and 22,739.52 is: 34,109.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,898.44 : 118,348.74 = 22,739.52 : x
  2. Step 2: Convert to fraction form
    78,898.44/118,348.74 = 22,739.52/x
  3. Step 3: Cross multiply
    78,898.44x = 118,348.74 × 22,739.52
  4. Step 4: Simplify right side
    78,898.44x = 2,691,193,540.20
  5. Step 5: Solve for x
    x = 2,691,193,540.20/78,898.44
  6. Step 6: Final answer
    x = 34,109.59

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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.