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Finding the Fourth Proportional to 79,467.10, 109,662.02 and 43,654.86

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Solution

The fourth proportional to 79,467.10, 109,662.02 and 43,654.86 is: 60,242.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,467.10 : 109,662.02 = 43,654.86 : x
  2. Step 2: Convert to fraction form
    79,467.10/109,662.02 = 43,654.86/x
  3. Step 3: Cross multiply
    79,467.10x = 109,662.02 × 43,654.86
  4. Step 4: Simplify right side
    79,467.10x = 4,787,280,130.42
  5. Step 5: Solve for x
    x = 4,787,280,130.42/79,467.10
  6. Step 6: Final answer
    x = 60,242.29

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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.