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Finding the Fourth Proportional to 225,630.96, 338,358.96 and 120,392.52

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Solution

The fourth proportional to 225,630.96, 338,358.96 and 120,392.52 is: 180,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,630.96 : 338,358.96 = 120,392.52 : x
  2. Step 2: Convert to fraction form
    225,630.96/338,358.96 = 120,392.52/x
  3. Step 3: Cross multiply
    225,630.96x = 338,358.96 × 120,392.52
  4. Step 4: Simplify right side
    225,630.96x = 40,735,887,858.98
  5. Step 5: Solve for x
    x = 40,735,887,858.98/225,630.96
  6. Step 6: Final answer
    x = 180,542.10

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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.