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Finding the Fourth Proportional to 79,809.94, 110,135.52 and 43,999.96

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Solution

The fourth proportional to 79,809.94, 110,135.52 and 43,999.96 is: 60,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,809.94 : 110,135.52 = 43,999.96 : x
  2. Step 2: Convert to fraction form
    79,809.94/110,135.52 = 43,999.96/x
  3. Step 3: Cross multiply
    79,809.94x = 110,135.52 × 43,999.96
  4. Step 4: Simplify right side
    79,809.94x = 4,845,958,474.58
  5. Step 5: Solve for x
    x = 4,845,958,474.58/79,809.94
  6. Step 6: Final answer
    x = 60,718.73

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1.5x scale

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.