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Finding the Fourth Proportional to 68,472.46, 102,638.22 and 33,368.68

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Solution

The fourth proportional to 68,472.46, 102,638.22 and 33,368.68 is: 50,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,472.46 : 102,638.22 = 33,368.68 : x
  2. Step 2: Convert to fraction form
    68,472.46/102,638.22 = 33,368.68/x
  3. Step 3: Cross multiply
    68,472.46x = 102,638.22 × 33,368.68
  4. Step 4: Simplify right side
    68,472.46x = 3,424,901,918.95
  5. Step 5: Solve for x
    x = 3,424,901,918.95/68,472.46
  6. Step 6: Final answer
    x = 50,018.68

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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.