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Finding the Fourth Proportional to 69,103.11, 103,859.16 and 57,333.24

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Solution

The fourth proportional to 69,103.11, 103,859.16 and 57,333.24 is: 86,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,103.11 : 103,859.16 = 57,333.24 : x
  2. Step 2: Convert to fraction form
    69,103.11/103,859.16 = 57,333.24/x
  3. Step 3: Cross multiply
    69,103.11x = 103,859.16 × 57,333.24
  4. Step 4: Simplify right side
    69,103.11x = 5,954,582,146.48
  5. Step 5: Solve for x
    x = 5,954,582,146.48/69,103.11
  6. Step 6: Final answer
    x = 86,169.52

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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.