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Finding the Fourth Proportional to 193,240, 266,580.48 and 136,682.56

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Solution

The fourth proportional to 193,240, 266,580.48 and 136,682.56 is: 188,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,240 : 266,580.48 = 136,682.56 : x
  2. Step 2: Convert to fraction form
    193,240/266,580.48 = 136,682.56/x
  3. Step 3: Cross multiply
    193,240x = 266,580.48 × 136,682.56
  4. Step 4: Simplify right side
    193,240x = 36,436,902,452.43
  5. Step 5: Solve for x
    x = 36,436,902,452.43/193,240
  6. Step 6: Final answer
    x = 188,557.76

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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.