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Finding the Fourth Proportional to 193,466.97, 266,996.39 and 128,825.37

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Solution

The fourth proportional to 193,466.97, 266,996.39 and 128,825.37 is: 177,786.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,466.97 : 266,996.39 = 128,825.37 : x
  2. Step 2: Convert to fraction form
    193,466.97/266,996.39 = 128,825.37/x
  3. Step 3: Cross multiply
    193,466.97x = 266,996.39 × 128,825.37
  4. Step 4: Simplify right side
    193,466.97x = 34,395,908,086.29
  5. Step 5: Solve for x
    x = 34,395,908,086.29/193,466.97
  6. Step 6: Final answer
    x = 177,786.98

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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.