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Finding the Fourth Proportional to 109,590.48, 151,234.83 and 61,843.68

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Solution

The fourth proportional to 109,590.48, 151,234.83 and 61,843.68 is: 85,344.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,590.48 : 151,234.83 = 61,843.68 : x
  2. Step 2: Convert to fraction form
    109,590.48/151,234.83 = 61,843.68/x
  3. Step 3: Cross multiply
    109,590.48x = 151,234.83 × 61,843.68
  4. Step 4: Simplify right side
    109,590.48x = 9,352,918,431.37
  5. Step 5: Solve for x
    x = 9,352,918,431.37/109,590.48
  6. Step 6: Final answer
    x = 85,344.26

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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.