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Finding the Fourth Proportional to 193,122, 266,449.68 and 121,573.44

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Solution

The fourth proportional to 193,122, 266,449.68 and 121,573.44 is: 167,734.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,122 : 266,449.68 = 121,573.44 : x
  2. Step 2: Convert to fraction form
    193,122/266,449.68 = 121,573.44/x
  3. Step 3: Cross multiply
    193,122x = 266,449.68 × 121,573.44
  4. Step 4: Simplify right side
    193,122x = 32,393,204,184.50
  5. Step 5: Solve for x
    x = 32,393,204,184.50/193,122
  6. Step 6: Final answer
    x = 167,734.41

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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.