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Finding the Fourth Proportional to 104,532.48, 156,435.84 and 85,593.60

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Solution

The fourth proportional to 104,532.48, 156,435.84 and 85,593.60 is: 128,093.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,532.48 : 156,435.84 = 85,593.60 : x
  2. Step 2: Convert to fraction form
    104,532.48/156,435.84 = 85,593.60/x
  3. Step 3: Cross multiply
    104,532.48x = 156,435.84 × 85,593.60
  4. Step 4: Simplify right side
    104,532.48x = 13,389,906,714.62
  5. Step 5: Solve for x
    x = 13,389,906,714.62/104,532.48
  6. Step 6: Final answer
    x = 128,093.27

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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.