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Finding the Fourth Proportional to 100,724.06, 150,950.07 and 38,360.54

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Solution

The fourth proportional to 100,724.06, 150,950.07 and 38,360.54 is: 57,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,724.06 : 150,950.07 = 38,360.54 : x
  2. Step 2: Convert to fraction form
    100,724.06/150,950.07 = 38,360.54/x
  3. Step 3: Cross multiply
    100,724.06x = 150,950.07 × 38,360.54
  4. Step 4: Simplify right side
    100,724.06x = 5,790,526,198.24
  5. Step 5: Solve for x
    x = 5,790,526,198.24/100,724.06
  6. Step 6: Final answer
    x = 57,489.01

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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.