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Finding the Fourth Proportional to 358,819.88, 538,229.81 and 148,463.28

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Solution

The fourth proportional to 358,819.88, 538,229.81 and 148,463.28 is: 222,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,819.88 : 538,229.81 = 148,463.28 : x
  2. Step 2: Convert to fraction form
    358,819.88/538,229.81 = 148,463.28/x
  3. Step 3: Cross multiply
    358,819.88x = 538,229.81 × 148,463.28
  4. Step 4: Simplify right side
    358,819.88x = 79,907,363,357.54
  5. Step 5: Solve for x
    x = 79,907,363,357.54/358,819.88
  6. Step 6: Final answer
    x = 222,694.92

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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.