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Finding the Fourth Proportional to 234,872.88, 352,308.37 and 85,078.11

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Solution

The fourth proportional to 234,872.88, 352,308.37 and 85,078.11 is: 127,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,872.88 : 352,308.37 = 85,078.11 : x
  2. Step 2: Convert to fraction form
    234,872.88/352,308.37 = 85,078.11/x
  3. Step 3: Cross multiply
    234,872.88x = 352,308.37 × 85,078.11
  4. Step 4: Simplify right side
    234,872.88x = 29,973,730,256.78
  5. Step 5: Solve for x
    x = 29,973,730,256.78/234,872.88
  6. Step 6: Final answer
    x = 127,616.82

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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.