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Finding the Fourth Proportional to 368,131.33, 551,864.81 and 255,864.42

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Solution

The fourth proportional to 368,131.33, 551,864.81 and 255,864.42 is: 383,565.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,131.33 : 551,864.81 = 255,864.42 : x
  2. Step 2: Convert to fraction form
    368,131.33/551,864.81 = 255,864.42/x
  3. Step 3: Cross multiply
    368,131.33x = 551,864.81 × 255,864.42
  4. Step 4: Simplify right side
    368,131.33x = 141,202,570,168.72
  5. Step 5: Solve for x
    x = 141,202,570,168.72/368,131.33
  6. Step 6: Final answer
    x = 383,565.75

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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.