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Finding the Fourth Proportional to 100,648.40, 150,974.76 and 36,604.40

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Solution

The fourth proportional to 100,648.40, 150,974.76 and 36,604.40 is: 54,907.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,648.40 : 150,974.76 = 36,604.40 : x
  2. Step 2: Convert to fraction form
    100,648.40/150,974.76 = 36,604.40/x
  3. Step 3: Cross multiply
    100,648.40x = 150,974.76 × 36,604.40
  4. Step 4: Simplify right side
    100,648.40x = 5,526,340,504.94
  5. Step 5: Solve for x
    x = 5,526,340,504.94/100,648.40
  6. Step 6: Final answer
    x = 54,907.39

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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.