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Finding the Fourth Proportional to 367,151.20, 550,620.94 and 100,920.40

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Solution

The fourth proportional to 367,151.20, 550,620.94 and 100,920.40 is: 151,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,151.20 : 550,620.94 = 100,920.40 : x
  2. Step 2: Convert to fraction form
    367,151.20/550,620.94 = 100,920.40/x
  3. Step 3: Cross multiply
    367,151.20x = 550,620.94 × 100,920.40
  4. Step 4: Simplify right side
    367,151.20x = 55,568,885,513.18
  5. Step 5: Solve for x
    x = 55,568,885,513.18/367,151.20
  6. Step 6: Final answer
    x = 151,351.50

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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.