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Finding the Fourth Proportional to 235,253.22, 352,879.83 and 85,465.59

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Solution

The fourth proportional to 235,253.22, 352,879.83 and 85,465.59 is: 128,198.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,253.22 : 352,879.83 = 85,465.59 : x
  2. Step 2: Convert to fraction form
    235,253.22/352,879.83 = 85,465.59/x
  3. Step 3: Cross multiply
    235,253.22x = 352,879.83 × 85,465.59
  4. Step 4: Simplify right side
    235,253.22x = 30,159,082,870.05
  5. Step 5: Solve for x
    x = 30,159,082,870.05/235,253.22
  6. Step 6: Final answer
    x = 128,198.39

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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.