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Finding the Fourth Proportional to 100,684.44, 150,697.95 and 74,023.39

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Solution

The fourth proportional to 100,684.44, 150,697.95 and 74,023.39 is: 110,793.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,684.44 : 150,697.95 = 74,023.39 : x
  2. Step 2: Convert to fraction form
    100,684.44/150,697.95 = 74,023.39/x
  3. Step 3: Cross multiply
    100,684.44x = 150,697.95 × 74,023.39
  4. Step 4: Simplify right side
    100,684.44x = 11,155,173,125.05
  5. Step 5: Solve for x
    x = 11,155,173,125.05/100,684.44
  6. Step 6: Final answer
    x = 110,793.42

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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.