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Finding the Fourth Proportional to 193,203, 266,529.42 and 136,645.56

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Solution

The fourth proportional to 193,203, 266,529.42 and 136,645.56 is: 188,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,203 : 266,529.42 = 136,645.56 : x
  2. Step 2: Convert to fraction form
    193,203/266,529.42 = 136,645.56/x
  3. Step 3: Cross multiply
    193,203x = 266,529.42 × 136,645.56
  4. Step 4: Simplify right side
    193,203x = 36,420,061,852.38
  5. Step 5: Solve for x
    x = 36,420,061,852.38/193,203
  6. Step 6: Final answer
    x = 188,506.71

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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.