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Finding the Fourth Proportional to 58,608.26, 80,879.19 and 31,750.74

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Solution

The fourth proportional to 58,608.26, 80,879.19 and 31,750.74 is: 43,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,608.26 : 80,879.19 = 31,750.74 : x
  2. Step 2: Convert to fraction form
    58,608.26/80,879.19 = 31,750.74/x
  3. Step 3: Cross multiply
    58,608.26x = 80,879.19 × 31,750.74
  4. Step 4: Simplify right side
    58,608.26x = 2,567,974,133.10
  5. Step 5: Solve for x
    x = 2,567,974,133.10/58,608.26
  6. Step 6: Final answer
    x = 43,815.91

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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.