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Finding the Fourth Proportional to 93,651.60, 140,185.80 and 54,091.20

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Solution

The fourth proportional to 93,651.60, 140,185.80 and 54,091.20 is: 80,968.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,651.60 : 140,185.80 = 54,091.20 : x
  2. Step 2: Convert to fraction form
    93,651.60/140,185.80 = 54,091.20/x
  3. Step 3: Cross multiply
    93,651.60x = 140,185.80 × 54,091.20
  4. Step 4: Simplify right side
    93,651.60x = 7,582,818,144.96
  5. Step 5: Solve for x
    x = 7,582,818,144.96/93,651.60
  6. Step 6: Final answer
    x = 80,968.38

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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.