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Finding the Fourth Proportional to 79,484.58, 109,691.42 and 43,675.88

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Solution

The fourth proportional to 79,484.58, 109,691.42 and 43,675.88 is: 60,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,484.58 : 109,691.42 = 43,675.88 : x
  2. Step 2: Convert to fraction form
    79,484.58/109,691.42 = 43,675.88/x
  3. Step 3: Cross multiply
    79,484.58x = 109,691.42 × 43,675.88
  4. Step 4: Simplify right side
    79,484.58x = 4,790,868,530.11
  5. Step 5: Solve for x
    x = 4,790,868,530.11/79,484.58
  6. Step 6: Final answer
    x = 60,274.19

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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.