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Finding the Fourth Proportional to 79,596.63, 109,840.65 and 43,786.33

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Solution

The fourth proportional to 79,596.63, 109,840.65 and 43,786.33 is: 60,423.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,596.63 : 109,840.65 = 43,786.33 : x
  2. Step 2: Convert to fraction form
    79,596.63/109,840.65 = 43,786.33/x
  3. Step 3: Cross multiply
    79,596.63x = 109,840.65 × 43,786.33
  4. Step 4: Simplify right side
    79,596.63x = 4,809,518,948.31
  5. Step 5: Solve for x
    x = 4,809,518,948.31/79,596.63
  6. Step 6: Final answer
    x = 60,423.65

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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.