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Finding the Fourth Proportional to 193,177, 266,585.22 and 112,660.36

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Solution

The fourth proportional to 193,177, 266,585.22 and 112,660.36 is: 155,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,177 : 266,585.22 = 112,660.36 : x
  2. Step 2: Convert to fraction form
    193,177/266,585.22 = 112,660.36/x
  3. Step 3: Cross multiply
    193,177x = 266,585.22 × 112,660.36
  4. Step 4: Simplify right side
    193,177x = 30,033,586,855.88
  5. Step 5: Solve for x
    x = 30,033,586,855.88/193,177
  6. Step 6: Final answer
    x = 155,471.86

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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.