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Finding the Fourth Proportional to 259,872.52, 389,808.80 and 62,880.52

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Solution

The fourth proportional to 259,872.52, 389,808.80 and 62,880.52 is: 94,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,872.52 : 389,808.80 = 62,880.52 : x
  2. Step 2: Convert to fraction form
    259,872.52/389,808.80 = 62,880.52/x
  3. Step 3: Cross multiply
    259,872.52x = 389,808.80 × 62,880.52
  4. Step 4: Simplify right side
    259,872.52x = 24,511,380,044.58
  5. Step 5: Solve for x
    x = 24,511,380,044.58/259,872.52
  6. Step 6: Final answer
    x = 94,320.78

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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.