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Finding the Fourth Proportional to 68,437.48, 102,711.51 and 29,022.28

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Solution

The fourth proportional to 68,437.48, 102,711.51 and 29,022.28 is: 43,556.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,437.48 : 102,711.51 = 29,022.28 : x
  2. Step 2: Convert to fraction form
    68,437.48/102,711.51 = 29,022.28/x
  3. Step 3: Cross multiply
    68,437.48x = 102,711.51 × 29,022.28
  4. Step 4: Simplify right side
    68,437.48x = 2,980,922,202.44
  5. Step 5: Solve for x
    x = 2,980,922,202.44/68,437.48
  6. Step 6: Final answer
    x = 43,556.87

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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.