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Finding the Fourth Proportional to 255,268.78, 382,903.26 and 114,863.38

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Solution

The fourth proportional to 255,268.78, 382,903.26 and 114,863.38 is: 172,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,268.78 : 382,903.26 = 114,863.38 : x
  2. Step 2: Convert to fraction form
    255,268.78/382,903.26 = 114,863.38/x
  3. Step 3: Cross multiply
    255,268.78x = 382,903.26 × 114,863.38
  4. Step 4: Simplify right side
    255,268.78x = 43,981,562,656.62
  5. Step 5: Solve for x
    x = 43,981,562,656.62/255,268.78
  6. Step 6: Final answer
    x = 172,295.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.