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Finding the Fourth Proportional to 79,695.37, 109,979.60 and 43,885.29

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Solution

The fourth proportional to 79,695.37, 109,979.60 and 43,885.29 is: 60,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,695.37 : 109,979.60 = 43,885.29 : x
  2. Step 2: Convert to fraction form
    79,695.37/109,979.60 = 43,885.29/x
  3. Step 3: Cross multiply
    79,695.37x = 109,979.60 × 43,885.29
  4. Step 4: Simplify right side
    79,695.37x = 4,826,486,420.66
  5. Step 5: Solve for x
    x = 4,826,486,420.66/79,695.37
  6. Step 6: Final answer
    x = 60,561.70

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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.