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Finding the Fourth Proportional to 161,676.70, 223,119.42 and 93,693.82

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Solution

The fourth proportional to 161,676.70, 223,119.42 and 93,693.82 is: 129,300.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,676.70 : 223,119.42 = 93,693.82 : x
  2. Step 2: Convert to fraction form
    161,676.70/223,119.42 = 93,693.82/x
  3. Step 3: Cross multiply
    161,676.70x = 223,119.42 × 93,693.82
  4. Step 4: Simplify right side
    161,676.70x = 20,904,910,775.98
  5. Step 5: Solve for x
    x = 20,904,910,775.98/161,676.70
  6. Step 6: Final answer
    x = 129,300.70

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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.