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Finding the Fourth Proportional to 277,579.88, 416,370.90 and 67,218.02

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Solution

The fourth proportional to 277,579.88, 416,370.90 and 67,218.02 is: 100,827.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,579.88 : 416,370.90 = 67,218.02 : x
  2. Step 2: Convert to fraction form
    277,579.88/416,370.90 = 67,218.02/x
  3. Step 3: Cross multiply
    277,579.88x = 416,370.90 × 67,218.02
  4. Step 4: Simplify right side
    277,579.88x = 27,987,627,483.62
  5. Step 5: Solve for x
    x = 27,987,627,483.62/277,579.88
  6. Step 6: Final answer
    x = 100,827.29

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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.