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Finding the Fourth Proportional to 292,766.78, 404,007.68 and 165,439.64

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Solution

The fourth proportional to 292,766.78, 404,007.68 and 165,439.64 is: 228,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,766.78 : 404,007.68 = 165,439.64 : x
  2. Step 2: Convert to fraction form
    292,766.78/404,007.68 = 165,439.64/x
  3. Step 3: Cross multiply
    292,766.78x = 404,007.68 × 165,439.64
  4. Step 4: Simplify right side
    292,766.78x = 66,838,885,136.44
  5. Step 5: Solve for x
    x = 66,838,885,136.44/292,766.78
  6. Step 6: Final answer
    x = 228,300.78

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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.