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Finding the Fourth Proportional to 88,690.80, 133,052.40 and 36,105.60

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Solution

The fourth proportional to 88,690.80, 133,052.40 and 36,105.60 is: 54,164.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,690.80 : 133,052.40 = 36,105.60 : x
  2. Step 2: Convert to fraction form
    88,690.80/133,052.40 = 36,105.60/x
  3. Step 3: Cross multiply
    88,690.80x = 133,052.40 × 36,105.60
  4. Step 4: Simplify right side
    88,690.80x = 4,803,936,733.44
  5. Step 5: Solve for x
    x = 4,803,936,733.44/88,690.80
  6. Step 6: Final answer
    x = 54,164.99

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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.