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Finding the Fourth Proportional to 78,900.44, 118,351.74 and 22,741.52

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Solution

The fourth proportional to 78,900.44, 118,351.74 and 22,741.52 is: 34,112.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,900.44 : 118,351.74 = 22,741.52 : x
  2. Step 2: Convert to fraction form
    78,900.44/118,351.74 = 22,741.52/x
  3. Step 3: Cross multiply
    78,900.44x = 118,351.74 × 22,741.52
  4. Step 4: Simplify right side
    78,900.44x = 2,691,498,462.24
  5. Step 5: Solve for x
    x = 2,691,498,462.24/78,900.44
  6. Step 6: Final answer
    x = 34,112.59

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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.