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Finding the Fourth Proportional to 66,493.36, 99,706.80 and 22,104.56

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Solution

The fourth proportional to 66,493.36, 99,706.80 and 22,104.56 is: 33,145.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,493.36 : 99,706.80 = 22,104.56 : x
  2. Step 2: Convert to fraction form
    66,493.36/99,706.80 = 22,104.56/x
  3. Step 3: Cross multiply
    66,493.36x = 99,706.80 × 22,104.56
  4. Step 4: Simplify right side
    66,493.36x = 2,203,974,943.01
  5. Step 5: Solve for x
    x = 2,203,974,943.01/66,493.36
  6. Step 6: Final answer
    x = 33,145.79

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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.