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Finding the Fourth Proportional to 234,709.49, 323,899.26 and 127,279.49

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Solution

The fourth proportional to 234,709.49, 323,899.26 and 127,279.49 is: 175,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,709.49 : 323,899.26 = 127,279.49 : x
  2. Step 2: Convert to fraction form
    234,709.49/323,899.26 = 127,279.49/x
  3. Step 3: Cross multiply
    234,709.49x = 323,899.26 × 127,279.49
  4. Step 4: Simplify right side
    234,709.49x = 41,225,732,624.18
  5. Step 5: Solve for x
    x = 41,225,732,624.18/234,709.49
  6. Step 6: Final answer
    x = 175,645.79

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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.