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Finding the Fourth Proportional to 193,993.80, 290,995.28 and 53,753.64

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Solution

The fourth proportional to 193,993.80, 290,995.28 and 53,753.64 is: 80,631.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,993.80 : 290,995.28 = 53,753.64 : x
  2. Step 2: Convert to fraction form
    193,993.80/290,995.28 = 53,753.64/x
  3. Step 3: Cross multiply
    193,993.80x = 290,995.28 × 53,753.64
  4. Step 4: Simplify right side
    193,993.80x = 15,642,055,522.82
  5. Step 5: Solve for x
    x = 15,642,055,522.82/193,993.80
  6. Step 6: Final answer
    x = 80,631.73

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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.