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Finding the Fourth Proportional to 259,672.50, 389,508.75 and 62,680.50

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Solution

The fourth proportional to 259,672.50, 389,508.75 and 62,680.50 is: 94,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,672.50 : 389,508.75 = 62,680.50 : x
  2. Step 2: Convert to fraction form
    259,672.50/389,508.75 = 62,680.50/x
  3. Step 3: Cross multiply
    259,672.50x = 389,508.75 × 62,680.50
  4. Step 4: Simplify right side
    259,672.50x = 24,414,603,204.38
  5. Step 5: Solve for x
    x = 24,414,603,204.38/259,672.50
  6. Step 6: Final answer
    x = 94,020.75

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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.