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Finding the Fourth Proportional to 79,467.96, 109,671.94 and 45,487.11

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Solution

The fourth proportional to 79,467.96, 109,671.94 and 45,487.11 is: 62,775.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,467.96 : 109,671.94 = 45,487.11 : x
  2. Step 2: Convert to fraction form
    79,467.96/109,671.94 = 45,487.11/x
  3. Step 3: Cross multiply
    79,467.96x = 109,671.94 × 45,487.11
  4. Step 4: Simplify right side
    79,467.96x = 4,988,659,194.05
  5. Step 5: Solve for x
    x = 4,988,659,194.05/79,467.96
  6. Step 6: Final answer
    x = 62,775.73

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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.