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Finding the Fourth Proportional to 193,561.80, 289,953.90 and 134,464.20

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Solution

The fourth proportional to 193,561.80, 289,953.90 and 134,464.20 is: 201,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,561.80 : 289,953.90 = 134,464.20 : x
  2. Step 2: Convert to fraction form
    193,561.80/289,953.90 = 134,464.20/x
  3. Step 3: Cross multiply
    193,561.80x = 289,953.90 × 134,464.20
  4. Step 4: Simplify right side
    193,561.80x = 38,988,419,200.38
  5. Step 5: Solve for x
    x = 38,988,419,200.38/193,561.80
  6. Step 6: Final answer
    x = 201,426.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.