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Finding the Fourth Proportional to 331,786.71, 457,865.39 and 180,883.71

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Solution

The fourth proportional to 331,786.71, 457,865.39 and 180,883.71 is: 249,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,786.71 : 457,865.39 = 180,883.71 : x
  2. Step 2: Convert to fraction form
    331,786.71/457,865.39 = 180,883.71/x
  3. Step 3: Cross multiply
    331,786.71x = 457,865.39 × 180,883.71
  4. Step 4: Simplify right side
    331,786.71x = 82,820,390,876.01
  5. Step 5: Solve for x
    x = 82,820,390,876.01/331,786.71
  6. Step 6: Final answer
    x = 249,619.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.