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Finding the Fourth Proportional to 79,986.16, 110,378.79 and 44,175.40

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Solution

The fourth proportional to 79,986.16, 110,378.79 and 44,175.40 is: 60,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,986.16 : 110,378.79 = 44,175.40 : x
  2. Step 2: Convert to fraction form
    79,986.16/110,378.79 = 44,175.40/x
  3. Step 3: Cross multiply
    79,986.16x = 110,378.79 × 44,175.40
  4. Step 4: Simplify right side
    79,986.16x = 4,876,027,199.77
  5. Step 5: Solve for x
    x = 4,876,027,199.77/79,986.16
  6. Step 6: Final answer
    x = 60,960.89

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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.