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Finding the Fourth Proportional to 93,990.91, 140,900.03 and 40,649.53

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Solution

The fourth proportional to 93,990.91, 140,900.03 and 40,649.53 is: 60,936.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,990.91 : 140,900.03 = 40,649.53 : x
  2. Step 2: Convert to fraction form
    93,990.91/140,900.03 = 40,649.53/x
  3. Step 3: Cross multiply
    93,990.91x = 140,900.03 × 40,649.53
  4. Step 4: Simplify right side
    93,990.91x = 5,727,519,996.49
  5. Step 5: Solve for x
    x = 5,727,519,996.49/93,990.91
  6. Step 6: Final answer
    x = 60,936.96

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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.