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Finding the Fourth Proportional to 218,260.01, 301,195.72 and 122,766.68

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Solution

The fourth proportional to 218,260.01, 301,195.72 and 122,766.68 is: 169,416.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,260.01 : 301,195.72 = 122,766.68 : x
  2. Step 2: Convert to fraction form
    218,260.01/301,195.72 = 122,766.68/x
  3. Step 3: Cross multiply
    218,260.01x = 301,195.72 × 122,766.68
  4. Step 4: Simplify right side
    218,260.01x = 36,976,797,375.55
  5. Step 5: Solve for x
    x = 36,976,797,375.55/218,260.01
  6. Step 6: Final answer
    x = 169,416.28

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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.