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Finding the Fourth Proportional to 235,236, 324,625.68 and 129,252

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Solution

The fourth proportional to 235,236, 324,625.68 and 129,252 is: 178,367.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,236 : 324,625.68 = 129,252 : x
  2. Step 2: Convert to fraction form
    235,236/324,625.68 = 129,252/x
  3. Step 3: Cross multiply
    235,236x = 324,625.68 × 129,252
  4. Step 4: Simplify right side
    235,236x = 41,958,518,391.36
  5. Step 5: Solve for x
    x = 41,958,518,391.36/235,236
  6. Step 6: Final answer
    x = 178,367.76

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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.