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Finding the Fourth Proportional to 200,434.92, 276,589.48 and 109,786.20

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Solution

The fourth proportional to 200,434.92, 276,589.48 and 109,786.20 is: 151,499.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,434.92 : 276,589.48 = 109,786.20 : x
  2. Step 2: Convert to fraction form
    200,434.92/276,589.48 = 109,786.20/x
  3. Step 3: Cross multiply
    200,434.92x = 276,589.48 × 109,786.20
  4. Step 4: Simplify right side
    200,434.92x = 30,365,707,969.18
  5. Step 5: Solve for x
    x = 30,365,707,969.18/200,434.92
  6. Step 6: Final answer
    x = 151,499.09

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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.