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Finding the Fourth Proportional to 88,914.80, 133,372.20 and 82,434.80

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Solution

The fourth proportional to 88,914.80, 133,372.20 and 82,434.80 is: 123,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,914.80 : 133,372.20 = 82,434.80 : x
  2. Step 2: Convert to fraction form
    88,914.80/133,372.20 = 82,434.80/x
  3. Step 3: Cross multiply
    88,914.80x = 133,372.20 × 82,434.80
  4. Step 4: Simplify right side
    88,914.80x = 10,994,510,632.56
  5. Step 5: Solve for x
    x = 10,994,510,632.56/88,914.80
  6. Step 6: Final answer
    x = 123,652.20

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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.