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Finding the Fourth Proportional to 245,813.59, 368,789.64 and 222,390.82

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Solution

The fourth proportional to 245,813.59, 368,789.64 and 222,390.82 is: 333,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,813.59 : 368,789.64 = 222,390.82 : x
  2. Step 2: Convert to fraction form
    245,813.59/368,789.64 = 222,390.82/x
  3. Step 3: Cross multiply
    245,813.59x = 368,789.64 × 222,390.82
  4. Step 4: Simplify right side
    245,813.59x = 82,015,430,447.10
  5. Step 5: Solve for x
    x = 82,015,430,447.10/245,813.59
  6. Step 6: Final answer
    x = 333,648.89

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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.