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Finding the Fourth Proportional to 129,797.67, 194,717.08 and 54,918.37

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Solution

The fourth proportional to 129,797.67, 194,717.08 and 54,918.37 is: 82,386.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,797.67 : 194,717.08 = 54,918.37 : x
  2. Step 2: Convert to fraction form
    129,797.67/194,717.08 = 54,918.37/x
  3. Step 3: Cross multiply
    129,797.67x = 194,717.08 × 54,918.37
  4. Step 4: Simplify right side
    129,797.67x = 10,693,544,644.76
  5. Step 5: Solve for x
    x = 10,693,544,644.76/129,797.67
  6. Step 6: Final answer
    x = 82,386.26

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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.