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Finding the Fourth Proportional to 54,554.60, 81,659.10 and 39,002.60

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Solution

The fourth proportional to 54,554.60, 81,659.10 and 39,002.60 is: 58,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,554.60 : 81,659.10 = 39,002.60 : x
  2. Step 2: Convert to fraction form
    54,554.60/81,659.10 = 39,002.60/x
  3. Step 3: Cross multiply
    54,554.60x = 81,659.10 × 39,002.60
  4. Step 4: Simplify right side
    54,554.60x = 3,184,917,213.66
  5. Step 5: Solve for x
    x = 3,184,917,213.66/54,554.60
  6. Step 6: Final answer
    x = 58,380.36

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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.