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Finding the Fourth Proportional to 235,270.74, 324,601.92 and 133,279.86

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Solution

The fourth proportional to 235,270.74, 324,601.92 and 133,279.86 is: 183,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,270.74 : 324,601.92 = 133,279.86 : x
  2. Step 2: Convert to fraction form
    235,270.74/324,601.92 = 133,279.86/x
  3. Step 3: Cross multiply
    235,270.74x = 324,601.92 × 133,279.86
  4. Step 4: Simplify right side
    235,270.74x = 43,262,898,453.33
  5. Step 5: Solve for x
    x = 43,262,898,453.33/235,270.74
  6. Step 6: Final answer
    x = 183,885.59

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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.