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Finding the Fourth Proportional to 304,503.25, 420,215.31 and 168,546.57

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Solution

The fourth proportional to 304,503.25, 420,215.31 and 168,546.57 is: 232,594.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,503.25 : 420,215.31 = 168,546.57 : x
  2. Step 2: Convert to fraction form
    304,503.25/420,215.31 = 168,546.57/x
  3. Step 3: Cross multiply
    304,503.25x = 420,215.31 × 168,546.57
  4. Step 4: Simplify right side
    304,503.25x = 70,825,849,161.99
  5. Step 5: Solve for x
    x = 70,825,849,161.99/304,503.25
  6. Step 6: Final answer
    x = 232,594.72

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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.