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Finding the Fourth Proportional to 79,394.54, 109,564.92 and 43,584.84

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Solution

The fourth proportional to 79,394.54, 109,564.92 and 43,584.84 is: 60,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,394.54 : 109,564.92 = 43,584.84 : x
  2. Step 2: Convert to fraction form
    79,394.54/109,564.92 = 43,584.84/x
  3. Step 3: Cross multiply
    79,394.54x = 109,564.92 × 43,584.84
  4. Step 4: Simplify right side
    79,394.54x = 4,775,369,507.81
  5. Step 5: Solve for x
    x = 4,775,369,507.81/79,394.54
  6. Step 6: Final answer
    x = 60,147.33

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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.