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Finding the Fourth Proportional to 79,590.63, 109,880.42 and 52,769.42

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Solution

The fourth proportional to 79,590.63, 109,880.42 and 52,769.42 is: 72,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,590.63 : 109,880.42 = 52,769.42 : x
  2. Step 2: Convert to fraction form
    79,590.63/109,880.42 = 52,769.42/x
  3. Step 3: Cross multiply
    79,590.63x = 109,880.42 × 52,769.42
  4. Step 4: Simplify right side
    79,590.63x = 5,798,326,694.88
  5. Step 5: Solve for x
    x = 5,798,326,694.88/79,590.63
  6. Step 6: Final answer
    x = 72,851.88

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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.