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Finding the Fourth Proportional to 388,992.74, 583,348.82 and 164,370.57

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Solution

The fourth proportional to 388,992.74, 583,348.82 and 164,370.57 is: 246,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,992.74 : 583,348.82 = 164,370.57 : x
  2. Step 2: Convert to fraction form
    388,992.74/583,348.82 = 164,370.57/x
  3. Step 3: Cross multiply
    388,992.74x = 583,348.82 × 164,370.57
  4. Step 4: Simplify right side
    388,992.74x = 95,885,377,230.37
  5. Step 5: Solve for x
    x = 95,885,377,230.37/388,992.74
  6. Step 6: Final answer
    x = 246,496.58

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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.