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Finding the Fourth Proportional to 100,318.69, 150,497.69 and 37,139.33

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Solution

The fourth proportional to 100,318.69, 150,497.69 and 37,139.33 is: 55,716.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,318.69 : 150,497.69 = 37,139.33 : x
  2. Step 2: Convert to fraction form
    100,318.69/150,497.69 = 37,139.33/x
  3. Step 3: Cross multiply
    100,318.69x = 150,497.69 × 37,139.33
  4. Step 4: Simplify right side
    100,318.69x = 5,589,383,373.15
  5. Step 5: Solve for x
    x = 5,589,383,373.15/100,318.69
  6. Step 6: Final answer
    x = 55,716.27

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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.