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Finding the Fourth Proportional to 489,680.96, 734,524.68 and 134,732.48

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Solution

The fourth proportional to 489,680.96, 734,524.68 and 134,732.48 is: 202,099.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,680.96 : 734,524.68 = 134,732.48 : x
  2. Step 2: Convert to fraction form
    489,680.96/734,524.68 = 134,732.48/x
  3. Step 3: Cross multiply
    489,680.96x = 734,524.68 × 134,732.48
  4. Step 4: Simplify right side
    489,680.96x = 98,964,331,757.61
  5. Step 5: Solve for x
    x = 98,964,331,757.61/489,680.96
  6. Step 6: Final answer
    x = 202,099.61

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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.