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Finding the Fourth Proportional to 66,069.99, 91,252.29 and 43,509.82

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Solution

The fourth proportional to 66,069.99, 91,252.29 and 43,509.82 is: 60,093.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,069.99 : 91,252.29 = 43,509.82 : x
  2. Step 2: Convert to fraction form
    66,069.99/91,252.29 = 43,509.82/x
  3. Step 3: Cross multiply
    66,069.99x = 91,252.29 × 43,509.82
  4. Step 4: Simplify right side
    66,069.99x = 3,970,370,712.49
  5. Step 5: Solve for x
    x = 3,970,370,712.49/66,069.99
  6. Step 6: Final answer
    x = 60,093.41

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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.