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Finding the Fourth Proportional to 251,090.92, 376,578.78 and 149,917.48

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Solution

The fourth proportional to 251,090.92, 376,578.78 and 149,917.48 is: 224,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,090.92 : 376,578.78 = 149,917.48 : x
  2. Step 2: Convert to fraction form
    251,090.92/376,578.78 = 149,917.48/x
  3. Step 3: Cross multiply
    251,090.92x = 376,578.78 × 149,917.48
  4. Step 4: Simplify right side
    251,090.92x = 56,455,741,719.07
  5. Step 5: Solve for x
    x = 56,455,741,719.07/251,090.92
  6. Step 6: Final answer
    x = 224,841.83

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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.