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Finding the Fourth Proportional to 89,903.22, 134,819.80 and 33,712.68

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Solution

The fourth proportional to 89,903.22, 134,819.80 and 33,712.68 is: 50,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,903.22 : 134,819.80 = 33,712.68 : x
  2. Step 2: Convert to fraction form
    89,903.22/134,819.80 = 33,712.68/x
  3. Step 3: Cross multiply
    89,903.22x = 134,819.80 × 33,712.68
  4. Step 4: Simplify right side
    89,903.22x = 4,545,136,775.06
  5. Step 5: Solve for x
    x = 4,545,136,775.06/89,903.22
  6. Step 6: Final answer
    x = 50,555.88

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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.