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Finding the Fourth Proportional to 251,636.55, 376,871.62 and 151,578.06

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Solution

The fourth proportional to 251,636.55, 376,871.62 and 151,578.06 is: 227,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,636.55 : 376,871.62 = 151,578.06 : x
  2. Step 2: Convert to fraction form
    251,636.55/376,871.62 = 151,578.06/x
  3. Step 3: Cross multiply
    251,636.55x = 376,871.62 × 151,578.06
  4. Step 4: Simplify right side
    251,636.55x = 57,125,469,028.66
  5. Step 5: Solve for x
    x = 57,125,469,028.66/251,636.55
  6. Step 6: Final answer
    x = 227,015.79

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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.