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Finding the Fourth Proportional to 235,239.71, 324,626.81 and 127,811.43

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Solution

The fourth proportional to 235,239.71, 324,626.81 and 127,811.43 is: 176,377.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,239.71 : 324,626.81 = 127,811.43 : x
  2. Step 2: Convert to fraction form
    235,239.71/324,626.81 = 127,811.43/x
  3. Step 3: Cross multiply
    235,239.71x = 324,626.81 × 127,811.43
  4. Step 4: Simplify right side
    235,239.71x = 41,491,016,163.38
  5. Step 5: Solve for x
    x = 41,491,016,163.38/235,239.71
  6. Step 6: Final answer
    x = 176,377.61

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1.5x scale

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.