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Finding the Fourth Proportional to 286,367.51, 395,174.37 and 171,709.44

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Solution

The fourth proportional to 286,367.51, 395,174.37 and 171,709.44 is: 236,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,367.51 : 395,174.37 = 171,709.44 : x
  2. Step 2: Convert to fraction form
    286,367.51/395,174.37 = 171,709.44/x
  3. Step 3: Cross multiply
    286,367.51x = 395,174.37 × 171,709.44
  4. Step 4: Simplify right side
    286,367.51x = 67,855,166,940.63
  5. Step 5: Solve for x
    x = 67,855,166,940.63/286,367.51
  6. Step 6: Final answer
    x = 236,951.35

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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.