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Finding the Fourth Proportional to 192,105.10, 288,157.65 and 98,793.10

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Solution

The fourth proportional to 192,105.10, 288,157.65 and 98,793.10 is: 148,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,105.10 : 288,157.65 = 98,793.10 : x
  2. Step 2: Convert to fraction form
    192,105.10/288,157.65 = 98,793.10/x
  3. Step 3: Cross multiply
    192,105.10x = 288,157.65 × 98,793.10
  4. Step 4: Simplify right side
    192,105.10x = 28,467,987,532.22
  5. Step 5: Solve for x
    x = 28,467,987,532.22/192,105.10
  6. Step 6: Final answer
    x = 148,189.65

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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.