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Finding the Fourth Proportional to 322,934.40, 484,228.80 and 135,734.40

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Solution

The fourth proportional to 322,934.40, 484,228.80 and 135,734.40 is: 203,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,934.40 : 484,228.80 = 135,734.40 : x
  2. Step 2: Convert to fraction form
    322,934.40/484,228.80 = 135,734.40/x
  3. Step 3: Cross multiply
    322,934.40x = 484,228.80 × 135,734.40
  4. Step 4: Simplify right side
    322,934.40x = 65,726,505,630.72
  5. Step 5: Solve for x
    x = 65,726,505,630.72/322,934.40
  6. Step 6: Final answer
    x = 203,528.97

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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.