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Finding the Fourth Proportional to 79,162.92, 109,175.04 and 48,943.44

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Solution

The fourth proportional to 79,162.92, 109,175.04 and 48,943.44 is: 67,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,162.92 : 109,175.04 = 48,943.44 : x
  2. Step 2: Convert to fraction form
    79,162.92/109,175.04 = 48,943.44/x
  3. Step 3: Cross multiply
    79,162.92x = 109,175.04 × 48,943.44
  4. Step 4: Simplify right side
    79,162.92x = 5,343,402,019.74
  5. Step 5: Solve for x
    x = 5,343,402,019.74/79,162.92
  6. Step 6: Final answer
    x = 67,498.80

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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.