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Finding the Fourth Proportional to 71,833.26, 107,750.09 and 71,729.46

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Solution

The fourth proportional to 71,833.26, 107,750.09 and 71,729.46 is: 107,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,833.26 : 107,750.09 = 71,729.46 : x
  2. Step 2: Convert to fraction form
    71,833.26/107,750.09 = 71,729.46/x
  3. Step 3: Cross multiply
    71,833.26x = 107,750.09 × 71,729.46
  4. Step 4: Simplify right side
    71,833.26x = 7,728,855,412.00
  5. Step 5: Solve for x
    x = 7,728,855,412.00/71,833.26
  6. Step 6: Final answer
    x = 107,594.38

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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.