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Finding the Fourth Proportional to 88,939.50, 122,800.68 and 54,994.52

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Solution

The fourth proportional to 88,939.50, 122,800.68 and 54,994.52 is: 75,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,939.50 : 122,800.68 = 54,994.52 : x
  2. Step 2: Convert to fraction form
    88,939.50/122,800.68 = 54,994.52/x
  3. Step 3: Cross multiply
    88,939.50x = 122,800.68 × 54,994.52
  4. Step 4: Simplify right side
    88,939.50x = 6,753,364,452.27
  5. Step 5: Solve for x
    x = 6,753,364,452.27/88,939.50
  6. Step 6: Final answer
    x = 75,932.12

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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.