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Finding the Fourth Proportional to 146,603.72, 219,861.84 and 51,816.41

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Solution

The fourth proportional to 146,603.72, 219,861.84 and 51,816.41 is: 77,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,603.72 : 219,861.84 = 51,816.41 : x
  2. Step 2: Convert to fraction form
    146,603.72/219,861.84 = 51,816.41/x
  3. Step 3: Cross multiply
    146,603.72x = 219,861.84 × 51,816.41
  4. Step 4: Simplify right side
    146,603.72x = 11,392,451,164.28
  5. Step 5: Solve for x
    x = 11,392,451,164.28/146,603.72
  6. Step 6: Final answer
    x = 77,709.15

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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.