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Finding the Fourth Proportional to 146,211.81, 218,818.71 and 122,546.08

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Solution

The fourth proportional to 146,211.81, 218,818.71 and 122,546.08 is: 183,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,211.81 : 218,818.71 = 122,546.08 : x
  2. Step 2: Convert to fraction form
    146,211.81/218,818.71 = 122,546.08/x
  3. Step 3: Cross multiply
    146,211.81x = 218,818.71 × 122,546.08
  4. Step 4: Simplify right side
    146,211.81x = 26,815,373,434.33
  5. Step 5: Solve for x
    x = 26,815,373,434.33/146,211.81
  6. Step 6: Final answer
    x = 183,400.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.