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Finding the Fourth Proportional to 54,598.54, 81,911.41 and 43,396.15

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Solution

The fourth proportional to 54,598.54, 81,911.41 and 43,396.15 is: 65,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,598.54 : 81,911.41 = 43,396.15 : x
  2. Step 2: Convert to fraction form
    54,598.54/81,911.41 = 43,396.15/x
  3. Step 3: Cross multiply
    54,598.54x = 81,911.41 × 43,396.15
  4. Step 4: Simplify right side
    54,598.54x = 3,554,639,835.07
  5. Step 5: Solve for x
    x = 3,554,639,835.07/54,598.54
  6. Step 6: Final answer
    x = 65,105.03

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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.