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Finding the Fourth Proportional to 339,872.74, 468,992.16 and 186,908.28

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Solution

The fourth proportional to 339,872.74, 468,992.16 and 186,908.28 is: 257,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,872.74 : 468,992.16 = 186,908.28 : x
  2. Step 2: Convert to fraction form
    339,872.74/468,992.16 = 186,908.28/x
  3. Step 3: Cross multiply
    339,872.74x = 468,992.16 × 186,908.28
  4. Step 4: Simplify right side
    339,872.74x = 87,658,517,959.08
  5. Step 5: Solve for x
    x = 87,658,517,959.08/339,872.74
  6. Step 6: Final answer
    x = 257,915.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.