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Finding the Fourth Proportional to 79,235.60, 109,346.09 and 43,424.84

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Solution

The fourth proportional to 79,235.60, 109,346.09 and 43,424.84 is: 59,926.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,235.60 : 109,346.09 = 43,424.84 : x
  2. Step 2: Convert to fraction form
    79,235.60/109,346.09 = 43,424.84/x
  3. Step 3: Cross multiply
    79,235.60x = 109,346.09 × 43,424.84
  4. Step 4: Simplify right side
    79,235.60x = 4,748,336,519.12
  5. Step 5: Solve for x
    x = 4,748,336,519.12/79,235.60
  6. Step 6: Final answer
    x = 59,926.81

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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.