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Finding the Fourth Proportional to 79,383.61, 109,530.53 and 44,928.81

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Solution

The fourth proportional to 79,383.61, 109,530.53 and 44,928.81 is: 61,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,383.61 : 109,530.53 = 44,928.81 : x
  2. Step 2: Convert to fraction form
    79,383.61/109,530.53 = 44,928.81/x
  3. Step 3: Cross multiply
    79,383.61x = 109,530.53 × 44,928.81
  4. Step 4: Simplify right side
    79,383.61x = 4,921,076,371.57
  5. Step 5: Solve for x
    x = 4,921,076,371.57/79,383.61
  6. Step 6: Final answer
    x = 61,991.09

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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.