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Finding the Fourth Proportional to 199,348.70, 299,073.47 and 66,229.65

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Solution

The fourth proportional to 199,348.70, 299,073.47 and 66,229.65 is: 99,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,348.70 : 299,073.47 = 66,229.65 : x
  2. Step 2: Convert to fraction form
    199,348.70/299,073.47 = 66,229.65/x
  3. Step 3: Cross multiply
    199,348.70x = 299,073.47 × 66,229.65
  4. Step 4: Simplify right side
    199,348.70x = 19,807,530,911.24
  5. Step 5: Solve for x
    x = 19,807,530,911.24/199,348.70
  6. Step 6: Final answer
    x = 99,361.23

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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.