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Finding the Fourth Proportional to 79,591.63, 109,881.80 and 52,770.42

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Solution

The fourth proportional to 79,591.63, 109,881.80 and 52,770.42 is: 72,853.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,591.63 : 109,881.80 = 52,770.42 : x
  2. Step 2: Convert to fraction form
    79,591.63/109,881.80 = 52,770.42/x
  3. Step 3: Cross multiply
    79,591.63x = 109,881.80 × 52,770.42
  4. Step 4: Simplify right side
    79,591.63x = 5,798,508,736.36
  5. Step 5: Solve for x
    x = 5,798,508,736.36/79,591.63
  6. Step 6: Final answer
    x = 72,853.25

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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.