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Finding the Fourth Proportional to 161,676.68, 242,496.52 and 43,338.78

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Solution

The fourth proportional to 161,676.68, 242,496.52 and 43,338.78 is: 65,003.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,676.68 : 242,496.52 = 43,338.78 : x
  2. Step 2: Convert to fraction form
    161,676.68/242,496.52 = 43,338.78/x
  3. Step 3: Cross multiply
    161,676.68x = 242,496.52 × 43,338.78
  4. Step 4: Simplify right side
    161,676.68x = 10,509,503,222.70
  5. Step 5: Solve for x
    x = 10,509,503,222.70/161,676.68
  6. Step 6: Final answer
    x = 65,003.21

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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.