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Finding the Fourth Proportional to 180,648.91, 270,915.94 and 168,855.49

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Solution

The fourth proportional to 180,648.91, 270,915.94 and 168,855.49 is: 253,229.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,648.91 : 270,915.94 = 168,855.49 : x
  2. Step 2: Convert to fraction form
    180,648.91/270,915.94 = 168,855.49/x
  3. Step 3: Cross multiply
    180,648.91x = 270,915.94 × 168,855.49
  4. Step 4: Simplify right side
    180,648.91x = 45,745,643,797.51
  5. Step 5: Solve for x
    x = 45,745,643,797.51/180,648.91
  6. Step 6: Final answer
    x = 253,229.56

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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.