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Finding the Fourth Proportional to 79,479.51, 119,230.34 and 26,874.87

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Solution

The fourth proportional to 79,479.51, 119,230.34 and 26,874.87 is: 40,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,479.51 : 119,230.34 = 26,874.87 : x
  2. Step 2: Convert to fraction form
    79,479.51/119,230.34 = 26,874.87/x
  3. Step 3: Cross multiply
    79,479.51x = 119,230.34 × 26,874.87
  4. Step 4: Simplify right side
    79,479.51x = 3,204,299,753.18
  5. Step 5: Solve for x
    x = 3,204,299,753.18/79,479.51
  6. Step 6: Final answer
    x = 40,316.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.