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Finding the Fourth Proportional to 259,229.25, 357,736.41 and 139,997.25

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Solution

The fourth proportional to 259,229.25, 357,736.41 and 139,997.25 is: 193,196.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,229.25 : 357,736.41 = 139,997.25 : x
  2. Step 2: Convert to fraction form
    259,229.25/357,736.41 = 139,997.25/x
  3. Step 3: Cross multiply
    259,229.25x = 357,736.41 × 139,997.25
  4. Step 4: Simplify right side
    259,229.25x = 50,082,113,624.87
  5. Step 5: Solve for x
    x = 50,082,113,624.87/259,229.25
  6. Step 6: Final answer
    x = 193,196.23

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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.