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Finding the Fourth Proportional to 220,676.74, 330,916.60 and 62,868.30

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Solution

The fourth proportional to 220,676.74, 330,916.60 and 62,868.30 is: 94,274.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,676.74 : 330,916.60 = 62,868.30 : x
  2. Step 2: Convert to fraction form
    220,676.74/330,916.60 = 62,868.30/x
  3. Step 3: Cross multiply
    220,676.74x = 330,916.60 × 62,868.30
  4. Step 4: Simplify right side
    220,676.74x = 20,804,164,083.78
  5. Step 5: Solve for x
    x = 20,804,164,083.78/220,676.74
  6. Step 6: Final answer
    x = 94,274.39

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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.