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Finding the Fourth Proportional to 100,340.33, 150,404.43 and 37,119.85

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Solution

The fourth proportional to 100,340.33, 150,404.43 and 37,119.85 is: 55,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,340.33 : 150,404.43 = 37,119.85 : x
  2. Step 2: Convert to fraction form
    100,340.33/150,404.43 = 37,119.85/x
  3. Step 3: Cross multiply
    100,340.33x = 150,404.43 × 37,119.85
  4. Step 4: Simplify right side
    100,340.33x = 5,582,989,880.94
  5. Step 5: Solve for x
    x = 5,582,989,880.94/100,340.33
  6. Step 6: Final answer
    x = 55,640.54

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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.