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Finding the Fourth Proportional to 100,358.09, 150,537.20 and 25,483.85

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Solution

The fourth proportional to 100,358.09, 150,537.20 and 25,483.85 is: 38,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,358.09 : 150,537.20 = 25,483.85 : x
  2. Step 2: Convert to fraction form
    100,358.09/150,537.20 = 25,483.85/x
  3. Step 3: Cross multiply
    100,358.09x = 150,537.20 × 25,483.85
  4. Step 4: Simplify right side
    100,358.09x = 3,836,266,544.11
  5. Step 5: Solve for x
    x = 3,836,266,544.11/100,358.09
  6. Step 6: Final answer
    x = 38,225.78

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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.