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Finding the Fourth Proportional to 325,980.68, 488,876.16 and 126,256.52

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Solution

The fourth proportional to 325,980.68, 488,876.16 and 126,256.52 is: 189,348.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,980.68 : 488,876.16 = 126,256.52 : x
  2. Step 2: Convert to fraction form
    325,980.68/488,876.16 = 126,256.52/x
  3. Step 3: Cross multiply
    325,980.68x = 488,876.16 × 126,256.52
  4. Step 4: Simplify right side
    325,980.68x = 61,723,802,672.56
  5. Step 5: Solve for x
    x = 61,723,802,672.56/325,980.68
  6. Step 6: Final answer
    x = 189,348.04

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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.