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Finding the Fourth Proportional to 68,879.82, 103,222.52 and 29,423.10

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Solution

The fourth proportional to 68,879.82, 103,222.52 and 29,423.10 is: 44,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,879.82 : 103,222.52 = 29,423.10 : x
  2. Step 2: Convert to fraction form
    68,879.82/103,222.52 = 29,423.10/x
  3. Step 3: Cross multiply
    68,879.82x = 103,222.52 × 29,423.10
  4. Step 4: Simplify right side
    68,879.82x = 3,037,126,528.21
  5. Step 5: Solve for x
    x = 3,037,126,528.21/68,879.82
  6. Step 6: Final answer
    x = 44,093.13

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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.