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Finding the Fourth Proportional to 101,549.53, 140,143.17 and 61,262.43

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Solution

The fourth proportional to 101,549.53, 140,143.17 and 61,262.43 is: 84,545.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,549.53 : 140,143.17 = 61,262.43 : x
  2. Step 2: Convert to fraction form
    101,549.53/140,143.17 = 61,262.43/x
  3. Step 3: Cross multiply
    101,549.53x = 140,143.17 × 61,262.43
  4. Step 4: Simplify right side
    101,549.53x = 8,585,510,912.37
  5. Step 5: Solve for x
    x = 8,585,510,912.37/101,549.53
  6. Step 6: Final answer
    x = 84,545.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.