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Finding the Fourth Proportional to 96,321.90, 145,204.77 and 89,899.50

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Solution

The fourth proportional to 96,321.90, 145,204.77 and 89,899.50 is: 135,523.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,321.90 : 145,204.77 = 89,899.50 : x
  2. Step 2: Convert to fraction form
    96,321.90/145,204.77 = 89,899.50/x
  3. Step 3: Cross multiply
    96,321.90x = 145,204.77 × 89,899.50
  4. Step 4: Simplify right side
    96,321.90x = 13,053,836,220.62
  5. Step 5: Solve for x
    x = 13,053,836,220.62/96,321.90
  6. Step 6: Final answer
    x = 135,523.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.