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Finding the Fourth Proportional to 251,644.20, 376,810.20 and 162,414.60

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Solution

The fourth proportional to 251,644.20, 376,810.20 and 162,414.60 is: 243,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,644.20 : 376,810.20 = 162,414.60 : x
  2. Step 2: Convert to fraction form
    251,644.20/376,810.20 = 162,414.60/x
  3. Step 3: Cross multiply
    251,644.20x = 376,810.20 × 162,414.60
  4. Step 4: Simplify right side
    251,644.20x = 61,199,477,908.92
  5. Step 5: Solve for x
    x = 61,199,477,908.92/251,644.20
  6. Step 6: Final answer
    x = 243,198.44

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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.