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Finding the Fourth Proportional to 367,653.21, 551,003.01 and 165,099.75

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Solution

The fourth proportional to 367,653.21, 551,003.01 and 165,099.75 is: 247,435.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,653.21 : 551,003.01 = 165,099.75 : x
  2. Step 2: Convert to fraction form
    367,653.21/551,003.01 = 165,099.75/x
  3. Step 3: Cross multiply
    367,653.21x = 551,003.01 × 165,099.75
  4. Step 4: Simplify right side
    367,653.21x = 90,970,459,200.25
  5. Step 5: Solve for x
    x = 90,970,459,200.25/367,653.21
  6. Step 6: Final answer
    x = 247,435.51

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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.