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Finding the Fourth Proportional to 193,791, 267,399.20 and 107,747.60

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Solution

The fourth proportional to 193,791, 267,399.20 and 107,747.60 is: 148,673.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,791 : 267,399.20 = 107,747.60 : x
  2. Step 2: Convert to fraction form
    193,791/267,399.20 = 107,747.60/x
  3. Step 3: Cross multiply
    193,791x = 267,399.20 × 107,747.60
  4. Step 4: Simplify right side
    193,791x = 28,811,622,041.92
  5. Step 5: Solve for x
    x = 28,811,622,041.92/193,791
  6. Step 6: Final answer
    x = 148,673.68

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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.