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Finding the Fourth Proportional to 225,424.50, 311,108.49 and 124,822.50

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Solution

The fourth proportional to 225,424.50, 311,108.49 and 124,822.50 is: 172,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,424.50 : 311,108.49 = 124,822.50 : x
  2. Step 2: Convert to fraction form
    225,424.50/311,108.49 = 124,822.50/x
  3. Step 3: Cross multiply
    225,424.50x = 311,108.49 × 124,822.50
  4. Step 4: Simplify right side
    225,424.50x = 38,833,339,493.03
  5. Step 5: Solve for x
    x = 38,833,339,493.03/225,424.50
  6. Step 6: Final answer
    x = 172,267.61

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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.