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Finding the Fourth Proportional to 255,338.45, 352,429.11 and 147,891.14

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Solution

The fourth proportional to 255,338.45, 352,429.11 and 147,891.14 is: 204,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,338.45 : 352,429.11 = 147,891.14 : x
  2. Step 2: Convert to fraction form
    255,338.45/352,429.11 = 147,891.14/x
  3. Step 3: Cross multiply
    255,338.45x = 352,429.11 × 147,891.14
  4. Step 4: Simplify right side
    255,338.45x = 52,121,142,847.09
  5. Step 5: Solve for x
    x = 52,121,142,847.09/255,338.45
  6. Step 6: Final answer
    x = 204,125.71

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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.