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Finding the Fourth Proportional to 71,982.54, 107,994.56 and 22,070.00

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Solution

The fourth proportional to 71,982.54, 107,994.56 and 22,070.00 is: 33,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,982.54 : 107,994.56 = 22,070.00 : x
  2. Step 2: Convert to fraction form
    71,982.54/107,994.56 = 22,070.00/x
  3. Step 3: Cross multiply
    71,982.54x = 107,994.56 × 22,070.00
  4. Step 4: Simplify right side
    71,982.54x = 2,383,440,222.98
  5. Step 5: Solve for x
    x = 2,383,440,222.98/71,982.54
  6. Step 6: Final answer
    x = 33,111.37

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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.