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Finding the Fourth Proportional to 225,121.68, 337,760.28 and 84,959.28

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Solution

The fourth proportional to 225,121.68, 337,760.28 and 84,959.28 is: 127,468.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,121.68 : 337,760.28 = 84,959.28 : x
  2. Step 2: Convert to fraction form
    225,121.68/337,760.28 = 84,959.28/x
  3. Step 3: Cross multiply
    225,121.68x = 337,760.28 × 84,959.28
  4. Step 4: Simplify right side
    225,121.68x = 28,695,870,201.40
  5. Step 5: Solve for x
    x = 28,695,870,201.40/225,121.68
  6. Step 6: Final answer
    x = 127,468.27

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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.