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Finding the Fourth Proportional to 100,231.20, 150,346.80 and 41,047.20

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Solution

The fourth proportional to 100,231.20, 150,346.80 and 41,047.20 is: 61,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,231.20 : 150,346.80 = 41,047.20 : x
  2. Step 2: Convert to fraction form
    100,231.20/150,346.80 = 41,047.20/x
  3. Step 3: Cross multiply
    100,231.20x = 150,346.80 × 41,047.20
  4. Step 4: Simplify right side
    100,231.20x = 6,171,315,168.96
  5. Step 5: Solve for x
    x = 6,171,315,168.96/100,231.20
  6. Step 6: Final answer
    x = 61,570.80

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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.