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Finding the Fourth Proportional to 130,336.44, 179,879.44 and 79,379.04

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Solution

The fourth proportional to 130,336.44, 179,879.44 and 79,379.04 is: 109,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,336.44 : 179,879.44 = 79,379.04 : x
  2. Step 2: Convert to fraction form
    130,336.44/179,879.44 = 79,379.04/x
  3. Step 3: Cross multiply
    130,336.44x = 179,879.44 × 79,379.04
  4. Step 4: Simplify right side
    130,336.44x = 14,278,657,262.94
  5. Step 5: Solve for x
    x = 14,278,657,262.94/130,336.44
  6. Step 6: Final answer
    x = 109,552.30

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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.