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Finding the Fourth Proportional to 196,197.53, 270,670.01 and 123,471.59

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Solution

The fourth proportional to 196,197.53, 270,670.01 and 123,471.59 is: 170,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,197.53 : 270,670.01 = 123,471.59 : x
  2. Step 2: Convert to fraction form
    196,197.53/270,670.01 = 123,471.59/x
  3. Step 3: Cross multiply
    196,197.53x = 270,670.01 × 123,471.59
  4. Step 4: Simplify right side
    196,197.53x = 33,420,054,529.31
  5. Step 5: Solve for x
    x = 33,420,054,529.31/196,197.53
  6. Step 6: Final answer
    x = 170,338.82

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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.