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Finding the Fourth Proportional to 304,813.33, 420,645.76 and 168,849.36

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Solution

The fourth proportional to 304,813.33, 420,645.76 and 168,849.36 is: 233,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,813.33 : 420,645.76 = 168,849.36 : x
  2. Step 2: Convert to fraction form
    304,813.33/420,645.76 = 168,849.36/x
  3. Step 3: Cross multiply
    304,813.33x = 420,645.76 × 168,849.36
  4. Step 4: Simplify right side
    304,813.33x = 71,025,766,940.59
  5. Step 5: Solve for x
    x = 71,025,766,940.59/304,813.33
  6. Step 6: Final answer
    x = 233,013.98

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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.