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Finding the Fourth Proportional to 235,103.71, 324,446.88 and 133,126.41

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Solution

The fourth proportional to 235,103.71, 324,446.88 and 133,126.41 is: 183,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,103.71 : 324,446.88 = 133,126.41 : x
  2. Step 2: Convert to fraction form
    235,103.71/324,446.88 = 133,126.41/x
  3. Step 3: Cross multiply
    235,103.71x = 324,446.88 × 133,126.41
  4. Step 4: Simplify right side
    235,103.71x = 43,192,448,370.10
  5. Step 5: Solve for x
    x = 43,192,448,370.10/235,103.71
  6. Step 6: Final answer
    x = 183,716.57

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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.