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Finding the Fourth Proportional to 325,370.60, 487,910.10 and 125,624.60

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Solution

The fourth proportional to 325,370.60, 487,910.10 and 125,624.60 is: 188,380.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,370.60 : 487,910.10 = 125,624.60 : x
  2. Step 2: Convert to fraction form
    325,370.60/487,910.10 = 125,624.60/x
  3. Step 3: Cross multiply
    325,370.60x = 487,910.10 × 125,624.60
  4. Step 4: Simplify right side
    325,370.60x = 61,293,511,148.46
  5. Step 5: Solve for x
    x = 61,293,511,148.46/325,370.60
  6. Step 6: Final answer
    x = 188,380.61

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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.