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Finding the Fourth Proportional to 354,016.51, 488,540.23 and 192,871.51

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Solution

The fourth proportional to 354,016.51, 488,540.23 and 192,871.51 is: 266,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,016.51 : 488,540.23 = 192,871.51 : x
  2. Step 2: Convert to fraction form
    354,016.51/488,540.23 = 192,871.51/x
  3. Step 3: Cross multiply
    354,016.51x = 488,540.23 × 192,871.51
  4. Step 4: Simplify right side
    354,016.51x = 94,225,491,855.85
  5. Step 5: Solve for x
    x = 94,225,491,855.85/354,016.51
  6. Step 6: Final answer
    x = 266,161.29

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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.