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Finding the Fourth Proportional to 128,586.88, 192,864.92 and 33,824.44

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Solution

The fourth proportional to 128,586.88, 192,864.92 and 33,824.44 is: 50,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,586.88 : 192,864.92 = 33,824.44 : x
  2. Step 2: Convert to fraction form
    128,586.88/192,864.92 = 33,824.44/x
  3. Step 3: Cross multiply
    128,586.88x = 192,864.92 × 33,824.44
  4. Step 4: Simplify right side
    128,586.88x = 6,523,547,914.64
  5. Step 5: Solve for x
    x = 6,523,547,914.64/128,586.88
  6. Step 6: Final answer
    x = 50,732.61

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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.