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Finding the Fourth Proportional to 185,361.27, 255,791.70 and 100,476.51

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Solution

The fourth proportional to 185,361.27, 255,791.70 and 100,476.51 is: 138,653.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,361.27 : 255,791.70 = 100,476.51 : x
  2. Step 2: Convert to fraction form
    185,361.27/255,791.70 = 100,476.51/x
  3. Step 3: Cross multiply
    185,361.27x = 255,791.70 × 100,476.51
  4. Step 4: Simplify right side
    185,361.27x = 25,701,057,302.97
  5. Step 5: Solve for x
    x = 25,701,057,302.97/185,361.27
  6. Step 6: Final answer
    x = 138,653.87

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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.