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Finding the Fourth Proportional to 250,243.92, 375,424.20 and 81,772.02

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Solution

The fourth proportional to 250,243.92, 375,424.20 and 81,772.02 is: 122,677.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,243.92 : 375,424.20 = 81,772.02 : x
  2. Step 2: Convert to fraction form
    250,243.92/375,424.20 = 81,772.02/x
  3. Step 3: Cross multiply
    250,243.92x = 375,424.20 × 81,772.02
  4. Step 4: Simplify right side
    250,243.92x = 30,699,195,190.88
  5. Step 5: Solve for x
    x = 30,699,195,190.88/250,243.92
  6. Step 6: Final answer
    x = 122,677.09

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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.