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Finding the Fourth Proportional to 193,857.82, 267,243.36 and 128,336.82

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Solution

The fourth proportional to 193,857.82, 267,243.36 and 128,336.82 is: 176,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,857.82 : 267,243.36 = 128,336.82 : x
  2. Step 2: Convert to fraction form
    193,857.82/267,243.36 = 128,336.82/x
  3. Step 3: Cross multiply
    193,857.82x = 267,243.36 × 128,336.82
  4. Step 4: Simplify right side
    193,857.82x = 34,297,162,988.52
  5. Step 5: Solve for x
    x = 34,297,162,988.52/193,857.82
  6. Step 6: Final answer
    x = 176,919.16

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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.