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Finding the Fourth Proportional to 286,368.51, 395,175.74 and 171,710.44

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Solution

The fourth proportional to 286,368.51, 395,175.74 and 171,710.44 is: 236,952.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,368.51 : 395,175.74 = 171,710.44 : x
  2. Step 2: Convert to fraction form
    286,368.51/395,175.74 = 171,710.44/x
  3. Step 3: Cross multiply
    286,368.51x = 395,175.74 × 171,710.44
  4. Step 4: Simplify right side
    286,368.51x = 67,855,800,192.73
  5. Step 5: Solve for x
    x = 67,855,800,192.73/286,368.51
  6. Step 6: Final answer
    x = 236,952.73

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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.