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Finding the Fourth Proportional to 234,678, 323,855.34 and 127,247.88

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Solution

The fourth proportional to 234,678, 323,855.34 and 127,247.88 is: 175,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,678 : 323,855.34 = 127,247.88 : x
  2. Step 2: Convert to fraction form
    234,678/323,855.34 = 127,247.88/x
  3. Step 3: Cross multiply
    234,678x = 323,855.34 × 127,247.88
  4. Step 4: Simplify right side
    234,678x = 41,209,905,441.68
  5. Step 5: Solve for x
    x = 41,209,905,441.68/234,678
  6. Step 6: Final answer
    x = 175,601.91

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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.