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Finding the Fourth Proportional to 258,327.99, 356,471.96 and 143,597.61

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Solution

The fourth proportional to 258,327.99, 356,471.96 and 143,597.61 is: 198,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,327.99 : 356,471.96 = 143,597.61 : x
  2. Step 2: Convert to fraction form
    258,327.99/356,471.96 = 143,597.61/x
  3. Step 3: Cross multiply
    258,327.99x = 356,471.96 × 143,597.61
  4. Step 4: Simplify right side
    258,327.99x = 51,188,520,770.03
  5. Step 5: Solve for x
    x = 51,188,520,770.03/258,327.99
  6. Step 6: Final answer
    x = 198,153.21

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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.