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Finding the Fourth Proportional to 55,462.97, 83,173.19 and 43,640.00

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Solution

The fourth proportional to 55,462.97, 83,173.19 and 43,640.00 is: 65,443.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,462.97 : 83,173.19 = 43,640.00 : x
  2. Step 2: Convert to fraction form
    55,462.97/83,173.19 = 43,640.00/x
  3. Step 3: Cross multiply
    55,462.97x = 83,173.19 × 43,640.00
  4. Step 4: Simplify right side
    55,462.97x = 3,629,678,001.33
  5. Step 5: Solve for x
    x = 3,629,678,001.33/55,462.97
  6. Step 6: Final answer
    x = 65,443.27

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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.