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Finding the Fourth Proportional to 54,080.46, 81,128.46 and 16,643.70

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Solution

The fourth proportional to 54,080.46, 81,128.46 and 16,643.70 is: 24,967.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,080.46 : 81,128.46 = 16,643.70 : x
  2. Step 2: Convert to fraction form
    54,080.46/81,128.46 = 16,643.70/x
  3. Step 3: Cross multiply
    54,080.46x = 81,128.46 × 16,643.70
  4. Step 4: Simplify right side
    54,080.46x = 1,350,277,749.70
  5. Step 5: Solve for x
    x = 1,350,277,749.70/54,080.46
  6. Step 6: Final answer
    x = 24,967.94

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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.