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Finding the Fourth Proportional to 367,396.86, 551,237.00 and 142,915.44

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Solution

The fourth proportional to 367,396.86, 551,237.00 and 142,915.44 is: 214,428.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,396.86 : 551,237.00 = 142,915.44 : x
  2. Step 2: Convert to fraction form
    367,396.86/551,237.00 = 142,915.44/x
  3. Step 3: Cross multiply
    367,396.86x = 551,237.00 × 142,915.44
  4. Step 4: Simplify right side
    367,396.86x = 78,780,276,651.13
  5. Step 5: Solve for x
    x = 78,780,276,651.13/367,396.86
  6. Step 6: Final answer
    x = 214,428.28

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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.