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Finding the Fourth Proportional to 272,497.04, 408,608.18 and 82,921.04

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Solution

The fourth proportional to 272,497.04, 408,608.18 and 82,921.04 is: 124,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,497.04 : 408,608.18 = 82,921.04 : x
  2. Step 2: Convert to fraction form
    272,497.04/408,608.18 = 82,921.04/x
  3. Step 3: Cross multiply
    272,497.04x = 408,608.18 × 82,921.04
  4. Step 4: Simplify right side
    272,497.04x = 33,882,215,238.11
  5. Step 5: Solve for x
    x = 33,882,215,238.11/272,497.04
  6. Step 6: Final answer
    x = 124,339.76

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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.