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Finding the Fourth Proportional to 89,087.70, 133,631.46 and 36,497.28

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Solution

The fourth proportional to 89,087.70, 133,631.46 and 36,497.28 is: 54,745.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,087.70 : 133,631.46 = 36,497.28 : x
  2. Step 2: Convert to fraction form
    89,087.70/133,631.46 = 36,497.28/x
  3. Step 3: Cross multiply
    89,087.70x = 133,631.46 × 36,497.28
  4. Step 4: Simplify right side
    89,087.70x = 4,877,184,812.43
  5. Step 5: Solve for x
    x = 4,877,184,812.43/89,087.70
  6. Step 6: Final answer
    x = 54,745.88

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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.