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Finding the Fourth Proportional to 111,166.16, 166,727.03 and 40,086.81

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Solution

The fourth proportional to 111,166.16, 166,727.03 and 40,086.81 is: 60,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,166.16 : 166,727.03 = 40,086.81 : x
  2. Step 2: Convert to fraction form
    111,166.16/166,727.03 = 40,086.81/x
  3. Step 3: Cross multiply
    111,166.16x = 166,727.03 × 40,086.81
  4. Step 4: Simplify right side
    111,166.16x = 6,683,554,573.04
  5. Step 5: Solve for x
    x = 6,683,554,573.04/111,166.16
  6. Step 6: Final answer
    x = 60,122.21

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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.