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Finding the Fourth Proportional to 66,620.44, 99,982.49 and 46,499.22

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Solution

The fourth proportional to 66,620.44, 99,982.49 and 46,499.22 is: 69,785.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,620.44 : 99,982.49 = 46,499.22 : x
  2. Step 2: Convert to fraction form
    66,620.44/99,982.49 = 46,499.22/x
  3. Step 3: Cross multiply
    66,620.44x = 99,982.49 × 46,499.22
  4. Step 4: Simplify right side
    66,620.44x = 4,649,107,378.69
  5. Step 5: Solve for x
    x = 4,649,107,378.69/66,620.44
  6. Step 6: Final answer
    x = 69,785.00

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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.