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Finding the Fourth Proportional to 250,503.44, 345,687.56 and 143,071.24

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Solution

The fourth proportional to 250,503.44, 345,687.56 and 143,071.24 is: 197,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,503.44 : 345,687.56 = 143,071.24 : x
  2. Step 2: Convert to fraction form
    250,503.44/345,687.56 = 143,071.24/x
  3. Step 3: Cross multiply
    250,503.44x = 345,687.56 × 143,071.24
  4. Step 4: Simplify right side
    250,503.44x = 49,457,947,861.77
  5. Step 5: Solve for x
    x = 49,457,947,861.77/250,503.44
  6. Step 6: Final answer
    x = 197,434.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.