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Finding the Fourth Proportional to 150,073.20, 224,728.79 and 90,063.90

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Solution

The fourth proportional to 150,073.20, 224,728.79 and 90,063.90 is: 134,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,073.20 : 224,728.79 = 90,063.90 : x
  2. Step 2: Convert to fraction form
    150,073.20/224,728.79 = 90,063.90/x
  3. Step 3: Cross multiply
    150,073.20x = 224,728.79 × 90,063.90
  4. Step 4: Simplify right side
    150,073.20x = 20,239,950,819.36
  5. Step 5: Solve for x
    x = 20,239,950,819.36/150,073.20
  6. Step 6: Final answer
    x = 134,867.19

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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.