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Finding the Fourth Proportional to 104,217.40, 143,819.40 and 58,910.05

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Solution

The fourth proportional to 104,217.40, 143,819.40 and 58,910.05 is: 81,295.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,217.40 : 143,819.40 = 58,910.05 : x
  2. Step 2: Convert to fraction form
    104,217.40/143,819.40 = 58,910.05/x
  3. Step 3: Cross multiply
    104,217.40x = 143,819.40 × 58,910.05
  4. Step 4: Simplify right side
    104,217.40x = 8,472,408,044.97
  5. Step 5: Solve for x
    x = 8,472,408,044.97/104,217.40
  6. Step 6: Final answer
    x = 81,295.52

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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.