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Finding the Fourth Proportional to 367,486.58, 551,015.29 and 142,584.34

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Solution

The fourth proportional to 367,486.58, 551,015.29 and 142,584.34 is: 213,793.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,486.58 : 551,015.29 = 142,584.34 : x
  2. Step 2: Convert to fraction form
    367,486.58/551,015.29 = 142,584.34/x
  3. Step 3: Cross multiply
    367,486.58x = 551,015.29 × 142,584.34
  4. Step 4: Simplify right side
    367,486.58x = 78,566,147,986.56
  5. Step 5: Solve for x
    x = 78,566,147,986.56/367,486.58
  6. Step 6: Final answer
    x = 213,793.25

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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.