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Finding the Fourth Proportional to 295,301.10, 442,936.17 and 84,930.78

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Solution

The fourth proportional to 295,301.10, 442,936.17 and 84,930.78 is: 127,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,301.10 : 442,936.17 = 84,930.78 : x
  2. Step 2: Convert to fraction form
    295,301.10/442,936.17 = 84,930.78/x
  3. Step 3: Cross multiply
    295,301.10x = 442,936.17 × 84,930.78
  4. Step 4: Simplify right side
    295,301.10x = 37,618,914,408.31
  5. Step 5: Solve for x
    x = 37,618,914,408.31/295,301.10
  6. Step 6: Final answer
    x = 127,391.72

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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.