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Finding the Fourth Proportional to 68,846.20, 103,313 and 29,403.64

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Solution

The fourth proportional to 68,846.20, 103,313 and 29,403.64 is: 44,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,846.20 : 103,313 = 29,403.64 : x
  2. Step 2: Convert to fraction form
    68,846.20/103,313 = 29,403.64/x
  3. Step 3: Cross multiply
    68,846.20x = 103,313 × 29,403.64
  4. Step 4: Simplify right side
    68,846.20x = 3,037,778,259.32
  5. Step 5: Solve for x
    x = 3,037,778,259.32/68,846.20
  6. Step 6: Final answer
    x = 44,124.12

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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.