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Finding the Fourth Proportional to 55,790.37, 83,603.54 and 43,972.37

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Solution

The fourth proportional to 55,790.37, 83,603.54 and 43,972.37 is: 65,893.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,790.37 : 83,603.54 = 43,972.37 : x
  2. Step 2: Convert to fraction form
    55,790.37/83,603.54 = 43,972.37/x
  3. Step 3: Cross multiply
    55,790.37x = 83,603.54 × 43,972.37
  4. Step 4: Simplify right side
    55,790.37x = 3,676,245,799.62
  5. Step 5: Solve for x
    x = 3,676,245,799.62/55,790.37
  6. Step 6: Final answer
    x = 65,893.91

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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.