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Finding the Fourth Proportional to 101,999.41, 152,999.12 and 31,879.33

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Solution

The fourth proportional to 101,999.41, 152,999.12 and 31,879.33 is: 47,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,999.41 : 152,999.12 = 31,879.33 : x
  2. Step 2: Convert to fraction form
    101,999.41/152,999.12 = 31,879.33/x
  3. Step 3: Cross multiply
    101,999.41x = 152,999.12 × 31,879.33
  4. Step 4: Simplify right side
    101,999.41x = 4,877,509,436.19
  5. Step 5: Solve for x
    x = 4,877,509,436.19/101,999.41
  6. Step 6: Final answer
    x = 47,819.00

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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.