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Finding the Fourth Proportional to 330,568.49, 495,434.48 and 162,049.21

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Solution

The fourth proportional to 330,568.49, 495,434.48 and 162,049.21 is: 242,868.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,568.49 : 495,434.48 = 162,049.21 : x
  2. Step 2: Convert to fraction form
    330,568.49/495,434.48 = 162,049.21/x
  3. Step 3: Cross multiply
    330,568.49x = 495,434.48 × 162,049.21
  4. Step 4: Simplify right side
    330,568.49x = 80,284,764,041.93
  5. Step 5: Solve for x
    x = 80,284,764,041.93/330,568.49
  6. Step 6: Final answer
    x = 242,868.77

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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.