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Finding the Fourth Proportional to 54,380.60, 81,506.10 and 22,790.60

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Solution

The fourth proportional to 54,380.60, 81,506.10 and 22,790.60 is: 34,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,380.60 : 81,506.10 = 22,790.60 : x
  2. Step 2: Convert to fraction form
    54,380.60/81,506.10 = 22,790.60/x
  3. Step 3: Cross multiply
    54,380.60x = 81,506.10 × 22,790.60
  4. Step 4: Simplify right side
    54,380.60x = 1,857,572,922.66
  5. Step 5: Solve for x
    x = 1,857,572,922.66/54,380.60
  6. Step 6: Final answer
    x = 34,158.74

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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.