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Finding the Fourth Proportional to 89,524.80, 134,092.80 and 54,532.80

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Solution

The fourth proportional to 89,524.80, 134,092.80 and 54,532.80 is: 81,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,524.80 : 134,092.80 = 54,532.80 : x
  2. Step 2: Convert to fraction form
    89,524.80/134,092.80 = 54,532.80/x
  3. Step 3: Cross multiply
    89,524.80x = 134,092.80 × 54,532.80
  4. Step 4: Simplify right side
    89,524.80x = 7,312,455,843.84
  5. Step 5: Solve for x
    x = 7,312,455,843.84/89,524.80
  6. Step 6: Final answer
    x = 81,680.78

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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.