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Finding the Fourth Proportional to 100,046.42, 150,121.38 and 43,925.94

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Solution

The fourth proportional to 100,046.42, 150,121.38 and 43,925.94 is: 65,911.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,046.42 : 150,121.38 = 43,925.94 : x
  2. Step 2: Convert to fraction form
    100,046.42/150,121.38 = 43,925.94/x
  3. Step 3: Cross multiply
    100,046.42x = 150,121.38 × 43,925.94
  4. Step 4: Simplify right side
    100,046.42x = 6,594,222,730.60
  5. Step 5: Solve for x
    x = 6,594,222,730.60/100,046.42
  6. Step 6: Final answer
    x = 65,911.63

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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.