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Finding the Fourth Proportional to 100,614.65, 150,920.40 and 25,734.12

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Solution

The fourth proportional to 100,614.65, 150,920.40 and 25,734.12 is: 38,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,614.65 : 150,920.40 = 25,734.12 : x
  2. Step 2: Convert to fraction form
    100,614.65/150,920.40 = 25,734.12/x
  3. Step 3: Cross multiply
    100,614.65x = 150,920.40 × 25,734.12
  4. Step 4: Simplify right side
    100,614.65x = 3,883,803,684.05
  5. Step 5: Solve for x
    x = 3,883,803,684.05/100,614.65
  6. Step 6: Final answer
    x = 38,600.78

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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.