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Finding the Fourth Proportional to 272,436.84, 408,717.45 and 82,924.07

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Solution

The fourth proportional to 272,436.84, 408,717.45 and 82,924.07 is: 124,405.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,436.84 : 408,717.45 = 82,924.07 : x
  2. Step 2: Convert to fraction form
    272,436.84/408,717.45 = 82,924.07/x
  3. Step 3: Cross multiply
    272,436.84x = 408,717.45 × 82,924.07
  4. Step 4: Simplify right side
    272,436.84x = 33,892,512,390.43
  5. Step 5: Solve for x
    x = 33,892,512,390.43/272,436.84
  6. Step 6: Final answer
    x = 124,405.03

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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.