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Finding the Fourth Proportional to 197,872.40, 273,082.92 and 112,995.92

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Solution

The fourth proportional to 197,872.40, 273,082.92 and 112,995.92 is: 155,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,872.40 : 273,082.92 = 112,995.92 : x
  2. Step 2: Convert to fraction form
    197,872.40/273,082.92 = 112,995.92/x
  3. Step 3: Cross multiply
    197,872.40x = 273,082.92 × 112,995.92
  4. Step 4: Simplify right side
    197,872.40x = 30,857,255,781.69
  5. Step 5: Solve for x
    x = 30,857,255,781.69/197,872.40
  6. Step 6: Final answer
    x = 155,945.22

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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.