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Finding the Fourth Proportional to 85,553.01, 117,939.65 and 58,652.91

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Solution

The fourth proportional to 85,553.01, 117,939.65 and 58,652.91 is: 80,856.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,553.01 : 117,939.65 = 58,652.91 : x
  2. Step 2: Convert to fraction form
    85,553.01/117,939.65 = 58,652.91/x
  3. Step 3: Cross multiply
    85,553.01x = 117,939.65 × 58,652.91
  4. Step 4: Simplify right side
    85,553.01x = 6,917,503,383.62
  5. Step 5: Solve for x
    x = 6,917,503,383.62/85,553.01
  6. Step 6: Final answer
    x = 80,856.34

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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.