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Finding the Fourth Proportional to 225,656, 311,405.28 and 125,060.48

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Solution

The fourth proportional to 225,656, 311,405.28 and 125,060.48 is: 172,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,656 : 311,405.28 = 125,060.48 : x
  2. Step 2: Convert to fraction form
    225,656/311,405.28 = 125,060.48/x
  3. Step 3: Cross multiply
    225,656x = 311,405.28 × 125,060.48
  4. Step 4: Simplify right side
    225,656x = 38,944,493,791.33
  5. Step 5: Solve for x
    x = 38,944,493,791.33/225,656
  6. Step 6: Final answer
    x = 172,583.46

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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.