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Finding the Fourth Proportional to 100,487.49, 150,732.03 and 36,490.87

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Solution

The fourth proportional to 100,487.49, 150,732.03 and 36,490.87 is: 54,736.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,487.49 : 150,732.03 = 36,490.87 : x
  2. Step 2: Convert to fraction form
    100,487.49/150,732.03 = 36,490.87/x
  3. Step 3: Cross multiply
    100,487.49x = 150,732.03 × 36,490.87
  4. Step 4: Simplify right side
    100,487.49x = 5,500,342,911.57
  5. Step 5: Solve for x
    x = 5,500,342,911.57/100,487.49
  6. Step 6: Final answer
    x = 54,736.59

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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.