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Finding the Fourth Proportional to 93,672.60, 140,217.30 and 54,112.20

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Solution

The fourth proportional to 93,672.60, 140,217.30 and 54,112.20 is: 80,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,672.60 : 140,217.30 = 54,112.20 : x
  2. Step 2: Convert to fraction form
    93,672.60/140,217.30 = 54,112.20/x
  3. Step 3: Cross multiply
    93,672.60x = 140,217.30 × 54,112.20
  4. Step 4: Simplify right side
    93,672.60x = 7,587,466,581.06
  5. Step 5: Solve for x
    x = 7,587,466,581.06/93,672.60
  6. Step 6: Final answer
    x = 80,999.85

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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.