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Finding the Fourth Proportional to 255,785.70, 352,891.71 and 148,296.54

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Solution

The fourth proportional to 255,785.70, 352,891.71 and 148,296.54 is: 204,595.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,785.70 : 352,891.71 = 148,296.54 : x
  2. Step 2: Convert to fraction form
    255,785.70/352,891.71 = 148,296.54/x
  3. Step 3: Cross multiply
    255,785.70x = 352,891.71 × 148,296.54
  4. Step 4: Simplify right side
    255,785.70x = 52,332,619,587.68
  5. Step 5: Solve for x
    x = 52,332,619,587.68/255,785.70
  6. Step 6: Final answer
    x = 204,595.56

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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.