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Finding the Fourth Proportional to 329,391.90, 494,093.28 and 92,740.26

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Solution

The fourth proportional to 329,391.90, 494,093.28 and 92,740.26 is: 139,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,391.90 : 494,093.28 = 92,740.26 : x
  2. Step 2: Convert to fraction form
    329,391.90/494,093.28 = 92,740.26/x
  3. Step 3: Cross multiply
    329,391.90x = 494,093.28 × 92,740.26
  4. Step 4: Simplify right side
    329,391.90x = 45,822,339,251.45
  5. Step 5: Solve for x
    x = 45,822,339,251.45/329,391.90
  6. Step 6: Final answer
    x = 139,111.92

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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.