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Finding the Fourth Proportional to 325,672.34, 488,511.14 and 126,015.57

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Solution

The fourth proportional to 325,672.34, 488,511.14 and 126,015.57 is: 189,024.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,672.34 : 488,511.14 = 126,015.57 : x
  2. Step 2: Convert to fraction form
    325,672.34/488,511.14 = 126,015.57/x
  3. Step 3: Cross multiply
    325,672.34x = 488,511.14 × 126,015.57
  4. Step 4: Simplify right side
    325,672.34x = 61,560,009,128.37
  5. Step 5: Solve for x
    x = 61,560,009,128.37/325,672.34
  6. Step 6: Final answer
    x = 189,024.37

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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.