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Finding the Fourth Proportional to 304,487.43, 420,193.55 and 168,530.82

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Solution

The fourth proportional to 304,487.43, 420,193.55 and 168,530.82 is: 232,573.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,487.43 : 420,193.55 = 168,530.82 : x
  2. Step 2: Convert to fraction form
    304,487.43/420,193.55 = 168,530.82/x
  3. Step 3: Cross multiply
    304,487.43x = 420,193.55 × 168,530.82
  4. Step 4: Simplify right side
    304,487.43x = 70,815,563,961.54
  5. Step 5: Solve for x
    x = 70,815,563,961.54/304,487.43
  6. Step 6: Final answer
    x = 232,573.03

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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.