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Finding the Fourth Proportional to 73,166.90, 109,786.80 and 41,601.20

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Solution

The fourth proportional to 73,166.90, 109,786.80 and 41,601.20 is: 62,422.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,166.90 : 109,786.80 = 41,601.20 : x
  2. Step 2: Convert to fraction form
    73,166.90/109,786.80 = 41,601.20/x
  3. Step 3: Cross multiply
    73,166.90x = 109,786.80 × 41,601.20
  4. Step 4: Simplify right side
    73,166.90x = 4,567,262,624.16
  5. Step 5: Solve for x
    x = 4,567,262,624.16/73,166.90
  6. Step 6: Final answer
    x = 62,422.52

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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.