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Finding the Fourth Proportional to 130,936.66, 196,401.11 and 36,172.53

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Solution

The fourth proportional to 130,936.66, 196,401.11 and 36,172.53 is: 54,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,936.66 : 196,401.11 = 36,172.53 : x
  2. Step 2: Convert to fraction form
    130,936.66/196,401.11 = 36,172.53/x
  3. Step 3: Cross multiply
    130,936.66x = 196,401.11 × 36,172.53
  4. Step 4: Simplify right side
    130,936.66x = 7,104,324,862.65
  5. Step 5: Solve for x
    x = 7,104,324,862.65/130,936.66
  6. Step 6: Final answer
    x = 54,257.72

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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.