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Finding the Fourth Proportional to 225,649.06, 338,405.43 and 67,835.62

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Solution

The fourth proportional to 225,649.06, 338,405.43 and 67,835.62 is: 101,732.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,649.06 : 338,405.43 = 67,835.62 : x
  2. Step 2: Convert to fraction form
    225,649.06/338,405.43 = 67,835.62/x
  3. Step 3: Cross multiply
    225,649.06x = 338,405.43 × 67,835.62
  4. Step 4: Simplify right side
    225,649.06x = 22,955,942,155.42
  5. Step 5: Solve for x
    x = 22,955,942,155.42/225,649.06
  6. Step 6: Final answer
    x = 101,732.94

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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.