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Finding the Fourth Proportional to 358,388.28, 537,540.84 and 133,756.56

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Solution

The fourth proportional to 358,388.28, 537,540.84 and 133,756.56 is: 200,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,388.28 : 537,540.84 = 133,756.56 : x
  2. Step 2: Convert to fraction form
    358,388.28/537,540.84 = 133,756.56/x
  3. Step 3: Cross multiply
    358,388.28x = 537,540.84 × 133,756.56
  4. Step 4: Simplify right side
    358,388.28x = 71,899,613,617.91
  5. Step 5: Solve for x
    x = 71,899,613,617.91/358,388.28
  6. Step 6: Final answer
    x = 200,619.32

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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.