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Finding the Fourth Proportional to 225,479.82, 338,120.48 and 67,671.36

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Solution

The fourth proportional to 225,479.82, 338,120.48 and 67,671.36 is: 101,477.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,479.82 : 338,120.48 = 67,671.36 : x
  2. Step 2: Convert to fraction form
    225,479.82/338,120.48 = 67,671.36/x
  3. Step 3: Cross multiply
    225,479.82x = 338,120.48 × 67,671.36
  4. Step 4: Simplify right side
    225,479.82x = 22,881,072,725.45
  5. Step 5: Solve for x
    x = 22,881,072,725.45/225,479.82
  6. Step 6: Final answer
    x = 101,477.25

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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.