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Finding the Fourth Proportional to 193,228, 266,563.92 and 136,670.56

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Solution

The fourth proportional to 193,228, 266,563.92 and 136,670.56 is: 188,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,228 : 266,563.92 = 136,670.56 : x
  2. Step 2: Convert to fraction form
    193,228/266,563.92 = 136,670.56/x
  3. Step 3: Cross multiply
    193,228x = 266,563.92 × 136,670.56
  4. Step 4: Simplify right side
    193,228x = 36,431,440,222.20
  5. Step 5: Solve for x
    x = 36,431,440,222.20/193,228
  6. Step 6: Final answer
    x = 188,541.21

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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.