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Finding the Fourth Proportional to 111,105.39, 153,324.95 and 60,119.03

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Solution

The fourth proportional to 111,105.39, 153,324.95 and 60,119.03 is: 82,963.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,105.39 : 153,324.95 = 60,119.03 : x
  2. Step 2: Convert to fraction form
    111,105.39/153,324.95 = 60,119.03/x
  3. Step 3: Cross multiply
    111,105.39x = 153,324.95 × 60,119.03
  4. Step 4: Simplify right side
    111,105.39x = 9,217,747,172.03
  5. Step 5: Solve for x
    x = 9,217,747,172.03/111,105.39
  6. Step 6: Final answer
    x = 82,963.99

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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.