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Finding the Fourth Proportional to 356,687.24, 535,049.67 and 90,450.06

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Solution

The fourth proportional to 356,687.24, 535,049.67 and 90,450.06 is: 135,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,687.24 : 535,049.67 = 90,450.06 : x
  2. Step 2: Convert to fraction form
    356,687.24/535,049.67 = 90,450.06/x
  3. Step 3: Cross multiply
    356,687.24x = 535,049.67 × 90,450.06
  4. Step 4: Simplify right side
    356,687.24x = 48,395,274,754.48
  5. Step 5: Solve for x
    x = 48,395,274,754.48/356,687.24
  6. Step 6: Final answer
    x = 135,679.86

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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.