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Finding the Fourth Proportional to 302,336.40, 453,067.20 and 133,718.70

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Solution

The fourth proportional to 302,336.40, 453,067.20 and 133,718.70 is: 200,384.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,336.40 : 453,067.20 = 133,718.70 : x
  2. Step 2: Convert to fraction form
    302,336.40/453,067.20 = 133,718.70/x
  3. Step 3: Cross multiply
    302,336.40x = 453,067.20 × 133,718.70
  4. Step 4: Simplify right side
    302,336.40x = 60,583,556,996.64
  5. Step 5: Solve for x
    x = 60,583,556,996.64/302,336.40
  6. Step 6: Final answer
    x = 200,384.59

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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.