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Finding the Fourth Proportional to 104,605.35, 156,819.84 and 45,396.42

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Solution

The fourth proportional to 104,605.35, 156,819.84 and 45,396.42 is: 68,056.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,605.35 : 156,819.84 = 45,396.42 : x
  2. Step 2: Convert to fraction form
    104,605.35/156,819.84 = 45,396.42/x
  3. Step 3: Cross multiply
    104,605.35x = 156,819.84 × 45,396.42
  4. Step 4: Simplify right side
    104,605.35x = 7,119,059,320.97
  5. Step 5: Solve for x
    x = 7,119,059,320.97/104,605.35
  6. Step 6: Final answer
    x = 68,056.36

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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.