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Finding the Fourth Proportional to 263,646.68, 363,839.07 and 161,728.34

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Solution

The fourth proportional to 263,646.68, 363,839.07 and 161,728.34 is: 223,189.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,646.68 : 363,839.07 = 161,728.34 : x
  2. Step 2: Convert to fraction form
    263,646.68/363,839.07 = 161,728.34/x
  3. Step 3: Cross multiply
    263,646.68x = 363,839.07 × 161,728.34
  4. Step 4: Simplify right side
    263,646.68x = 58,843,086,999.05
  5. Step 5: Solve for x
    x = 58,843,086,999.05/263,646.68
  6. Step 6: Final answer
    x = 223,189.19

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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.