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Finding the Fourth Proportional to 92,956.82, 128,273.11 and 52,676.89

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Solution

The fourth proportional to 92,956.82, 128,273.11 and 52,676.89 is: 72,689.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,956.82 : 128,273.11 = 52,676.89 : x
  2. Step 2: Convert to fraction form
    92,956.82/128,273.11 = 52,676.89/x
  3. Step 3: Cross multiply
    92,956.82x = 128,273.11 × 52,676.89
  4. Step 4: Simplify right side
    92,956.82x = 6,757,028,053.05
  5. Step 5: Solve for x
    x = 6,757,028,053.05/92,956.82
  6. Step 6: Final answer
    x = 72,689.97

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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.