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Finding the Fourth Proportional to 292,731.72, 404,103.78 and 171,853.80

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Solution

The fourth proportional to 292,731.72, 404,103.78 and 171,853.80 is: 237,236.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,731.72 : 404,103.78 = 171,853.80 : x
  2. Step 2: Convert to fraction form
    292,731.72/404,103.78 = 171,853.80/x
  3. Step 3: Cross multiply
    292,731.72x = 404,103.78 × 171,853.80
  4. Step 4: Simplify right side
    292,731.72x = 69,446,770,187.36
  5. Step 5: Solve for x
    x = 69,446,770,187.36/292,731.72
  6. Step 6: Final answer
    x = 237,236.92

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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.