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Finding the Fourth Proportional to 100,609.58, 150,919.42 and 38,284.94

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Solution

The fourth proportional to 100,609.58, 150,919.42 and 38,284.94 is: 57,429.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,609.58 : 150,919.42 = 38,284.94 : x
  2. Step 2: Convert to fraction form
    100,609.58/150,919.42 = 38,284.94/x
  3. Step 3: Cross multiply
    100,609.58x = 150,919.42 × 38,284.94
  4. Step 4: Simplify right side
    100,609.58x = 5,777,940,939.53
  5. Step 5: Solve for x
    x = 5,777,940,939.53/100,609.58
  6. Step 6: Final answer
    x = 57,429.33

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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.