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Finding the Fourth Proportional to 289,146.75, 399,268.76 and 181,896.27

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Solution

The fourth proportional to 289,146.75, 399,268.76 and 181,896.27 is: 251,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,146.75 : 399,268.76 = 181,896.27 : x
  2. Step 2: Convert to fraction form
    289,146.75/399,268.76 = 181,896.27/x
  3. Step 3: Cross multiply
    289,146.75x = 399,268.76 × 181,896.27
  4. Step 4: Simplify right side
    289,146.75x = 72,625,497,262.04
  5. Step 5: Solve for x
    x = 72,625,497,262.04/289,146.75
  6. Step 6: Final answer
    x = 251,171.76

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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.