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Finding the Fourth Proportional to 81,365.99, 122,068.46 and 33,954.70

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Solution

The fourth proportional to 81,365.99, 122,068.46 and 33,954.70 is: 50,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,365.99 : 122,068.46 = 33,954.70 : x
  2. Step 2: Convert to fraction form
    81,365.99/122,068.46 = 33,954.70/x
  3. Step 3: Cross multiply
    81,365.99x = 122,068.46 × 33,954.70
  4. Step 4: Simplify right side
    81,365.99x = 4,144,797,938.76
  5. Step 5: Solve for x
    x = 4,144,797,938.76/81,365.99
  6. Step 6: Final answer
    x = 50,940.18

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1.5x scale

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.