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Finding the Fourth Proportional to 225,393.12, 338,145.84 and 67,624.48

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Solution

The fourth proportional to 225,393.12, 338,145.84 and 67,624.48 is: 101,453.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,393.12 : 338,145.84 = 67,624.48 : x
  2. Step 2: Convert to fraction form
    225,393.12/338,145.84 = 67,624.48/x
  3. Step 3: Cross multiply
    225,393.12x = 338,145.84 × 67,624.48
  4. Step 4: Simplify right side
    225,393.12x = 22,866,936,594.16
  5. Step 5: Solve for x
    x = 22,866,936,594.16/225,393.12
  6. Step 6: Final answer
    x = 101,453.57

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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.