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Finding the Fourth Proportional to 251,240.93, 376,649.44 and 108,979.10

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Solution

The fourth proportional to 251,240.93, 376,649.44 and 108,979.10 is: 163,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,240.93 : 376,649.44 = 108,979.10 : x
  2. Step 2: Convert to fraction form
    251,240.93/376,649.44 = 108,979.10/x
  3. Step 3: Cross multiply
    251,240.93x = 376,649.44 × 108,979.10
  4. Step 4: Simplify right side
    251,240.93x = 41,046,916,243.44
  5. Step 5: Solve for x
    x = 41,046,916,243.44/251,240.93
  6. Step 6: Final answer
    x = 163,376.71

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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.