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Finding the Fourth Proportional to 104,310, 156,477.21 and 33,207.73

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Solution

The fourth proportional to 104,310, 156,477.21 and 33,207.73 is: 49,815.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,310 : 156,477.21 = 33,207.73 : x
  2. Step 2: Convert to fraction form
    104,310/156,477.21 = 33,207.73/x
  3. Step 3: Cross multiply
    104,310x = 156,477.21 × 33,207.73
  4. Step 4: Simplify right side
    104,310x = 5,196,252,940.83
  5. Step 5: Solve for x
    x = 5,196,252,940.83/104,310
  6. Step 6: Final answer
    x = 49,815.48

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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.