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Finding the Fourth Proportional to 79,765.35, 110,078.53 and 43,957.68

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Solution

The fourth proportional to 79,765.35, 110,078.53 and 43,957.68 is: 60,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,765.35 : 110,078.53 = 43,957.68 : x
  2. Step 2: Convert to fraction form
    79,765.35/110,078.53 = 43,957.68/x
  3. Step 3: Cross multiply
    79,765.35x = 110,078.53 × 43,957.68
  4. Step 4: Simplify right side
    79,765.35x = 4,838,796,796.61
  5. Step 5: Solve for x
    x = 4,838,796,796.61/79,765.35
  6. Step 6: Final answer
    x = 60,662.89

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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.