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Finding the Fourth Proportional to 79,880.56, 110,215.48 and 48,827.97

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Solution

The fourth proportional to 79,880.56, 110,215.48 and 48,827.97 is: 67,370.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,880.56 : 110,215.48 = 48,827.97 : x
  2. Step 2: Convert to fraction form
    79,880.56/110,215.48 = 48,827.97/x
  3. Step 3: Cross multiply
    79,880.56x = 110,215.48 × 48,827.97
  4. Step 4: Simplify right side
    79,880.56x = 5,381,598,150.98
  5. Step 5: Solve for x
    x = 5,381,598,150.98/79,880.56
  6. Step 6: Final answer
    x = 67,370.56

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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.