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Finding the Fourth Proportional to 220,647.78, 330,984.19 and 62,888.54

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Solution

The fourth proportional to 220,647.78, 330,984.19 and 62,888.54 is: 94,336.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,647.78 : 330,984.19 = 62,888.54 : x
  2. Step 2: Convert to fraction form
    220,647.78/330,984.19 = 62,888.54/x
  3. Step 3: Cross multiply
    220,647.78x = 330,984.19 × 62,888.54
  4. Step 4: Simplify right side
    220,647.78x = 20,815,112,472.18
  5. Step 5: Solve for x
    x = 20,815,112,472.18/220,647.78
  6. Step 6: Final answer
    x = 94,336.38

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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.