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Finding the Fourth Proportional to 100,391.40, 150,600.96 and 33,850.53

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Solution

The fourth proportional to 100,391.40, 150,600.96 and 33,850.53 is: 50,780.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,391.40 : 150,600.96 = 33,850.53 : x
  2. Step 2: Convert to fraction form
    100,391.40/150,600.96 = 33,850.53/x
  3. Step 3: Cross multiply
    100,391.40x = 150,600.96 × 33,850.53
  4. Step 4: Simplify right side
    100,391.40x = 5,097,922,314.51
  5. Step 5: Solve for x
    x = 5,097,922,314.51/100,391.40
  6. Step 6: Final answer
    x = 50,780.47

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1.5x scale

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.