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Finding the Fourth Proportional to 103,665.33, 155,498 and 33,551.73

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Solution

The fourth proportional to 103,665.33, 155,498 and 33,551.73 is: 50,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665.33 : 155,498 = 33,551.73 : x
  2. Step 2: Convert to fraction form
    103,665.33/155,498 = 33,551.73/x
  3. Step 3: Cross multiply
    103,665.33x = 155,498 × 33,551.73
  4. Step 4: Simplify right side
    103,665.33x = 5,217,226,911.54
  5. Step 5: Solve for x
    x = 5,217,226,911.54/103,665.33
  6. Step 6: Final answer
    x = 50,327.60

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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.