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Finding the Fourth Proportional to 79,534.39, 109,752.82 and 43,724.39

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Solution

The fourth proportional to 79,534.39, 109,752.82 and 43,724.39 is: 60,337.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,534.39 : 109,752.82 = 43,724.39 : x
  2. Step 2: Convert to fraction form
    79,534.39/109,752.82 = 43,724.39/x
  3. Step 3: Cross multiply
    79,534.39x = 109,752.82 × 43,724.39
  4. Step 4: Simplify right side
    79,534.39x = 4,798,875,105.28
  5. Step 5: Solve for x
    x = 4,798,875,105.28/79,534.39
  6. Step 6: Final answer
    x = 60,337.11

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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.