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Finding the Fourth Proportional to 225,881.92, 338,699.12 and 104,170.34

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Solution

The fourth proportional to 225,881.92, 338,699.12 and 104,170.34 is: 156,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,881.92 : 338,699.12 = 104,170.34 : x
  2. Step 2: Convert to fraction form
    225,881.92/338,699.12 = 104,170.34/x
  3. Step 3: Cross multiply
    225,881.92x = 338,699.12 × 104,170.34
  4. Step 4: Simplify right side
    225,881.92x = 35,282,402,488.10
  5. Step 5: Solve for x
    x = 35,282,402,488.10/225,881.92
  6. Step 6: Final answer
    x = 156,198.44

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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.