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Finding the Fourth Proportional to 392,578.92, 588,855.82 and 164,995.11

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Solution

The fourth proportional to 392,578.92, 588,855.82 and 164,995.11 is: 247,487.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,578.92 : 588,855.82 = 164,995.11 : x
  2. Step 2: Convert to fraction form
    392,578.92/588,855.82 = 164,995.11/x
  3. Step 3: Cross multiply
    392,578.92x = 588,855.82 × 164,995.11
  4. Step 4: Simplify right side
    392,578.92x = 97,158,330,795.04
  5. Step 5: Solve for x
    x = 97,158,330,795.04/392,578.92
  6. Step 6: Final answer
    x = 247,487.39

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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.