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Finding the Fourth Proportional to 93,975.80, 140,969.10 and 27,426.20

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Solution

The fourth proportional to 93,975.80, 140,969.10 and 27,426.20 is: 41,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,975.80 : 140,969.10 = 27,426.20 : x
  2. Step 2: Convert to fraction form
    93,975.80/140,969.10 = 27,426.20/x
  3. Step 3: Cross multiply
    93,975.80x = 140,969.10 × 27,426.20
  4. Step 4: Simplify right side
    93,975.80x = 3,866,246,730.42
  5. Step 5: Solve for x
    x = 3,866,246,730.42/93,975.80
  6. Step 6: Final answer
    x = 41,140.88

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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.