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Finding the Fourth Proportional to 318,163.80, 439,045.74 and 182,197.56

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Solution

The fourth proportional to 318,163.80, 439,045.74 and 182,197.56 is: 251,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,163.80 : 439,045.74 = 182,197.56 : x
  2. Step 2: Convert to fraction form
    318,163.80/439,045.74 = 182,197.56/x
  3. Step 3: Cross multiply
    318,163.80x = 439,045.74 × 182,197.56
  4. Step 4: Simplify right side
    318,163.80x = 79,993,062,556.39
  5. Step 5: Solve for x
    x = 79,993,062,556.39/318,163.80
  6. Step 6: Final answer
    x = 251,421.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.