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Finding the Fourth Proportional to 74,498.70, 111,755.76 and 23,879.91

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Solution

The fourth proportional to 74,498.70, 111,755.76 and 23,879.91 is: 35,822.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,498.70 : 111,755.76 = 23,879.91 : x
  2. Step 2: Convert to fraction form
    74,498.70/111,755.76 = 23,879.91/x
  3. Step 3: Cross multiply
    74,498.70x = 111,755.76 × 23,879.91
  4. Step 4: Simplify right side
    74,498.70x = 2,668,717,490.78
  5. Step 5: Solve for x
    x = 2,668,717,490.78/74,498.70
  6. Step 6: Final answer
    x = 35,822.34

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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.