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Finding the Fourth Proportional to 289,183.44, 399,073.08 and 161,859.04

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Solution

The fourth proportional to 289,183.44, 399,073.08 and 161,859.04 is: 223,365.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,183.44 : 399,073.08 = 161,859.04 : x
  2. Step 2: Convert to fraction form
    289,183.44/399,073.08 = 161,859.04/x
  3. Step 3: Cross multiply
    289,183.44x = 399,073.08 × 161,859.04
  4. Step 4: Simplify right side
    289,183.44x = 64,593,585,618.64
  5. Step 5: Solve for x
    x = 64,593,585,618.64/289,183.44
  6. Step 6: Final answer
    x = 223,365.44

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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.