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Finding the Fourth Proportional to 225,143.74, 337,715.54 and 84,869.56

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Solution

The fourth proportional to 225,143.74, 337,715.54 and 84,869.56 is: 127,304.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,143.74 : 337,715.54 = 84,869.56 : x
  2. Step 2: Convert to fraction form
    225,143.74/337,715.54 = 84,869.56/x
  3. Step 3: Cross multiply
    225,143.74x = 337,715.54 × 84,869.56
  4. Step 4: Simplify right side
    225,143.74x = 28,661,769,497.14
  5. Step 5: Solve for x
    x = 28,661,769,497.14/225,143.74
  6. Step 6: Final answer
    x = 127,304.31

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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.