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Finding the Fourth Proportional to 53,167.12, 79,750.80 and 49,919.44

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Solution

The fourth proportional to 53,167.12, 79,750.80 and 49,919.44 is: 74,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,167.12 : 79,750.80 = 49,919.44 : x
  2. Step 2: Convert to fraction form
    53,167.12/79,750.80 = 49,919.44/x
  3. Step 3: Cross multiply
    53,167.12x = 79,750.80 × 49,919.44
  4. Step 4: Simplify right side
    53,167.12x = 3,981,115,275.55
  5. Step 5: Solve for x
    x = 3,981,115,275.55/53,167.12
  6. Step 6: Final answer
    x = 74,879.27

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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.