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Finding the Fourth Proportional to 193,809.78, 267,444.18 and 108,939.60

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Solution

The fourth proportional to 193,809.78, 267,444.18 and 108,939.60 is: 150,329.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,809.78 : 267,444.18 = 108,939.60 : x
  2. Step 2: Convert to fraction form
    193,809.78/267,444.18 = 108,939.60/x
  3. Step 3: Cross multiply
    193,809.78x = 267,444.18 × 108,939.60
  4. Step 4: Simplify right side
    193,809.78x = 29,135,261,991.53
  5. Step 5: Solve for x
    x = 29,135,261,991.53/193,809.78
  6. Step 6: Final answer
    x = 150,329.16

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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.