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Finding the Fourth Proportional to 250,424.55, 345,583.94 and 137,247.03

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Solution

The fourth proportional to 250,424.55, 345,583.94 and 137,247.03 is: 189,399.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,424.55 : 345,583.94 = 137,247.03 : x
  2. Step 2: Convert to fraction form
    250,424.55/345,583.94 = 137,247.03/x
  3. Step 3: Cross multiply
    250,424.55x = 345,583.94 × 137,247.03
  4. Step 4: Simplify right side
    250,424.55x = 47,430,368,694.46
  5. Step 5: Solve for x
    x = 47,430,368,694.46/250,424.55
  6. Step 6: Final answer
    x = 189,399.84

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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.