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Finding the Fourth Proportional to 262,687.64, 394,082.90 and 94,162.88

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Solution

The fourth proportional to 262,687.64, 394,082.90 and 94,162.88 is: 141,262.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,687.64 : 394,082.90 = 94,162.88 : x
  2. Step 2: Convert to fraction form
    262,687.64/394,082.90 = 94,162.88/x
  3. Step 3: Cross multiply
    262,687.64x = 394,082.90 × 94,162.88
  4. Step 4: Simplify right side
    262,687.64x = 37,107,980,822.75
  5. Step 5: Solve for x
    x = 37,107,980,822.75/262,687.64
  6. Step 6: Final answer
    x = 141,262.76

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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.