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Finding the Fourth Proportional to 193,655.21, 267,275.90 and 161,338.57

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Solution

The fourth proportional to 193,655.21, 267,275.90 and 161,338.57 is: 222,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,655.21 : 267,275.90 = 161,338.57 : x
  2. Step 2: Convert to fraction form
    193,655.21/267,275.90 = 161,338.57/x
  3. Step 3: Cross multiply
    193,655.21x = 267,275.90 × 161,338.57
  4. Step 4: Simplify right side
    193,655.21x = 43,121,911,236.62
  5. Step 5: Solve for x
    x = 43,121,911,236.62/193,655.21
  6. Step 6: Final answer
    x = 222,673.65

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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.