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Finding the Fourth Proportional to 108,512.80, 162,753.60 and 41,984.32

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Solution

The fourth proportional to 108,512.80, 162,753.60 and 41,984.32 is: 62,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,512.80 : 162,753.60 = 41,984.32 : x
  2. Step 2: Convert to fraction form
    108,512.80/162,753.60 = 41,984.32/x
  3. Step 3: Cross multiply
    108,512.80x = 162,753.60 × 41,984.32
  4. Step 4: Simplify right side
    108,512.80x = 6,833,099,223.55
  5. Step 5: Solve for x
    x = 6,833,099,223.55/108,512.80
  6. Step 6: Final answer
    x = 62,970.44

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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.