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Finding the Fourth Proportional to 361,352.98, 541,819.37 and 136,730.77

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Solution

The fourth proportional to 361,352.98, 541,819.37 and 136,730.77 is: 205,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,352.98 : 541,819.37 = 136,730.77 : x
  2. Step 2: Convert to fraction form
    361,352.98/541,819.37 = 136,730.77/x
  3. Step 3: Cross multiply
    361,352.98x = 541,819.37 × 136,730.77
  4. Step 4: Simplify right side
    361,352.98x = 74,083,378,648.29
  5. Step 5: Solve for x
    x = 74,083,378,648.29/361,352.98
  6. Step 6: Final answer
    x = 205,016.65

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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.