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Finding the Fourth Proportional to 66,441.80, 99,551.75 and 46,684.99

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Solution

The fourth proportional to 66,441.80, 99,551.75 and 46,684.99 is: 69,949.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,441.80 : 99,551.75 = 46,684.99 : x
  2. Step 2: Convert to fraction form
    66,441.80/99,551.75 = 46,684.99/x
  3. Step 3: Cross multiply
    66,441.80x = 99,551.75 × 46,684.99
  4. Step 4: Simplify right side
    66,441.80x = 4,647,572,453.23
  5. Step 5: Solve for x
    x = 4,647,572,453.23/66,441.80
  6. Step 6: Final answer
    x = 69,949.53

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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.