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Finding the Fourth Proportional to 325,939.22, 488,909.22 and 89,283.94

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Solution

The fourth proportional to 325,939.22, 488,909.22 and 89,283.94 is: 133,926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,939.22 : 488,909.22 = 89,283.94 : x
  2. Step 2: Convert to fraction form
    325,939.22/488,909.22 = 89,283.94/x
  3. Step 3: Cross multiply
    325,939.22x = 488,909.22 × 89,283.94
  4. Step 4: Simplify right side
    325,939.22x = 43,651,741,463.93
  5. Step 5: Solve for x
    x = 43,651,741,463.93/325,939.22
  6. Step 6: Final answer
    x = 133,926.02

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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.