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Finding the Fourth Proportional to 79,608.64, 109,856.46 and 43,796.38

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Solution

The fourth proportional to 79,608.64, 109,856.46 and 43,796.38 is: 60,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,608.64 : 109,856.46 = 43,796.38 : x
  2. Step 2: Convert to fraction form
    79,608.64/109,856.46 = 43,796.38/x
  3. Step 3: Cross multiply
    79,608.64x = 109,856.46 × 43,796.38
  4. Step 4: Simplify right side
    79,608.64x = 4,811,315,267.61
  5. Step 5: Solve for x
    x = 4,811,315,267.61/79,608.64
  6. Step 6: Final answer
    x = 60,437.10

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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.