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Finding the Fourth Proportional to 203,028.80, 304,562.40 and 55,284.80

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Solution

The fourth proportional to 203,028.80, 304,562.40 and 55,284.80 is: 82,932.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,028.80 : 304,562.40 = 55,284.80 : x
  2. Step 2: Convert to fraction form
    203,028.80/304,562.40 = 55,284.80/x
  3. Step 3: Cross multiply
    203,028.80x = 304,562.40 × 55,284.80
  4. Step 4: Simplify right side
    203,028.80x = 16,837,671,371.52
  5. Step 5: Solve for x
    x = 16,837,671,371.52/203,028.80
  6. Step 6: Final answer
    x = 82,932.43

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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.