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Finding the Fourth Proportional to 79,208.60, 109,297.50 and 47,365.88

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Solution

The fourth proportional to 79,208.60, 109,297.50 and 47,365.88 is: 65,358.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,208.60 : 109,297.50 = 47,365.88 : x
  2. Step 2: Convert to fraction form
    79,208.60/109,297.50 = 47,365.88/x
  3. Step 3: Cross multiply
    79,208.60x = 109,297.50 × 47,365.88
  4. Step 4: Simplify right side
    79,208.60x = 5,176,972,269.30
  5. Step 5: Solve for x
    x = 5,176,972,269.30/79,208.60
  6. Step 6: Final answer
    x = 65,358.71

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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.