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Finding the Fourth Proportional to 220,069.49, 330,126.60 and 75,956.55

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Solution

The fourth proportional to 220,069.49, 330,126.60 and 75,956.55 is: 113,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,069.49 : 330,126.60 = 75,956.55 : x
  2. Step 2: Convert to fraction form
    220,069.49/330,126.60 = 75,956.55/x
  3. Step 3: Cross multiply
    220,069.49x = 330,126.60 × 75,956.55
  4. Step 4: Simplify right side
    220,069.49x = 25,075,277,599.23
  5. Step 5: Solve for x
    x = 25,075,277,599.23/220,069.49
  6. Step 6: Final answer
    x = 113,942.55

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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.