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Finding the Fourth Proportional to 74,586.51, 111,879.84 and 52,498.47

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Solution

The fourth proportional to 74,586.51, 111,879.84 and 52,498.47 is: 78,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,586.51 : 111,879.84 = 52,498.47 : x
  2. Step 2: Convert to fraction form
    74,586.51/111,879.84 = 52,498.47/x
  3. Step 3: Cross multiply
    74,586.51x = 111,879.84 × 52,498.47
  4. Step 4: Simplify right side
    74,586.51x = 5,873,520,161.35
  5. Step 5: Solve for x
    x = 5,873,520,161.35/74,586.51
  6. Step 6: Final answer
    x = 78,747.75

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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.