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Finding the Fourth Proportional to 54,608.96, 81,904.32 and 15,170.06

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Solution

The fourth proportional to 54,608.96, 81,904.32 and 15,170.06 is: 22,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,608.96 : 81,904.32 = 15,170.06 : x
  2. Step 2: Convert to fraction form
    54,608.96/81,904.32 = 15,170.06/x
  3. Step 3: Cross multiply
    54,608.96x = 81,904.32 × 15,170.06
  4. Step 4: Simplify right side
    54,608.96x = 1,242,493,039.14
  5. Step 5: Solve for x
    x = 1,242,493,039.14/54,608.96
  6. Step 6: Final answer
    x = 22,752.55

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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.