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Finding the Fourth Proportional to 144,414.54, 199,274.40 and 79,879.32

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Solution

The fourth proportional to 144,414.54, 199,274.40 and 79,879.32 is: 110,223.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,414.54 : 199,274.40 = 79,879.32 : x
  2. Step 2: Convert to fraction form
    144,414.54/199,274.40 = 79,879.32/x
  3. Step 3: Cross multiply
    144,414.54x = 199,274.40 × 79,879.32
  4. Step 4: Simplify right side
    144,414.54x = 15,917,903,565.41
  5. Step 5: Solve for x
    x = 15,917,903,565.41/144,414.54
  6. Step 6: Final answer
    x = 110,223.69

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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.