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Finding the Fourth Proportional to 367,489.50, 551,234.25 and 118,171.50

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Solution

The fourth proportional to 367,489.50, 551,234.25 and 118,171.50 is: 177,257.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,489.50 : 551,234.25 = 118,171.50 : x
  2. Step 2: Convert to fraction form
    367,489.50/551,234.25 = 118,171.50/x
  3. Step 3: Cross multiply
    367,489.50x = 551,234.25 × 118,171.50
  4. Step 4: Simplify right side
    367,489.50x = 65,140,178,173.88
  5. Step 5: Solve for x
    x = 65,140,178,173.88/367,489.50
  6. Step 6: Final answer
    x = 177,257.25

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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.