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Finding the Fourth Proportional to 271,138.51, 374,180.75 and 163,687.56

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Solution

The fourth proportional to 271,138.51, 374,180.75 and 163,687.56 is: 225,894.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,138.51 : 374,180.75 = 163,687.56 : x
  2. Step 2: Convert to fraction form
    271,138.51/374,180.75 = 163,687.56/x
  3. Step 3: Cross multiply
    271,138.51x = 374,180.75 × 163,687.56
  4. Step 4: Simplify right side
    271,138.51x = 61,248,733,966.47
  5. Step 5: Solve for x
    x = 61,248,733,966.47/271,138.51
  6. Step 6: Final answer
    x = 225,894.63

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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.