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Finding the Fourth Proportional to 79,473.62, 109,675.64 and 43,664.54

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Solution

The fourth proportional to 79,473.62, 109,675.64 and 43,664.54 is: 60,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,473.62 : 109,675.64 = 43,664.54 : x
  2. Step 2: Convert to fraction form
    79,473.62/109,675.64 = 43,664.54/x
  3. Step 3: Cross multiply
    79,473.62x = 109,675.64 × 43,664.54
  4. Step 4: Simplify right side
    79,473.62x = 4,788,935,930.59
  5. Step 5: Solve for x
    x = 4,788,935,930.59/79,473.62
  6. Step 6: Final answer
    x = 60,258.18

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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.