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Finding the Fourth Proportional to 124,046.44, 171,120.99 and 81,051.11

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Solution

The fourth proportional to 124,046.44, 171,120.99 and 81,051.11 is: 111,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,046.44 : 171,120.99 = 81,051.11 : x
  2. Step 2: Convert to fraction form
    124,046.44/171,120.99 = 81,051.11/x
  3. Step 3: Cross multiply
    124,046.44x = 171,120.99 × 81,051.11
  4. Step 4: Simplify right side
    124,046.44x = 13,869,546,183.80
  5. Step 5: Solve for x
    x = 13,869,546,183.80/124,046.44
  6. Step 6: Final answer
    x = 111,809.30

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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.