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Finding the Fourth Proportional to 73,161.20, 109,741.80 and 50,610.80

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Solution

The fourth proportional to 73,161.20, 109,741.80 and 50,610.80 is: 75,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,161.20 : 109,741.80 = 50,610.80 : x
  2. Step 2: Convert to fraction form
    73,161.20/109,741.80 = 50,610.80/x
  3. Step 3: Cross multiply
    73,161.20x = 109,741.80 × 50,610.80
  4. Step 4: Simplify right side
    73,161.20x = 5,554,120,291.44
  5. Step 5: Solve for x
    x = 5,554,120,291.44/73,161.20
  6. Step 6: Final answer
    x = 75,916.20

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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.