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Finding the Fourth Proportional to 271,758.78, 374,943.02 and 156,995.54

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Solution

The fourth proportional to 271,758.78, 374,943.02 and 156,995.54 is: 216,605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,758.78 : 374,943.02 = 156,995.54 : x
  2. Step 2: Convert to fraction form
    271,758.78/374,943.02 = 156,995.54/x
  3. Step 3: Cross multiply
    271,758.78x = 374,943.02 × 156,995.54
  4. Step 4: Simplify right side
    271,758.78x = 58,864,382,046.51
  5. Step 5: Solve for x
    x = 58,864,382,046.51/271,758.78
  6. Step 6: Final answer
    x = 216,605.26

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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.