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Finding the Fourth Proportional to 192,348.72, 288,523.20 and 80,026.80

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Solution

The fourth proportional to 192,348.72, 288,523.20 and 80,026.80 is: 120,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,348.72 : 288,523.20 = 80,026.80 : x
  2. Step 2: Convert to fraction form
    192,348.72/288,523.20 = 80,026.80/x
  3. Step 3: Cross multiply
    192,348.72x = 288,523.20 × 80,026.80
  4. Step 4: Simplify right side
    192,348.72x = 23,089,588,421.76
  5. Step 5: Solve for x
    x = 23,089,588,421.76/192,348.72
  6. Step 6: Final answer
    x = 120,040.25

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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.