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Finding the Fourth Proportional to 339,411.92, 468,380.28 and 188,509.04

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Solution

The fourth proportional to 339,411.92, 468,380.28 and 188,509.04 is: 260,137.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,411.92 : 468,380.28 = 188,509.04 : x
  2. Step 2: Convert to fraction form
    339,411.92/468,380.28 = 188,509.04/x
  3. Step 3: Cross multiply
    339,411.92x = 468,380.28 × 188,509.04
  4. Step 4: Simplify right side
    339,411.92x = 88,293,916,937.73
  5. Step 5: Solve for x
    x = 88,293,916,937.73/339,411.92
  6. Step 6: Final answer
    x = 260,137.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.