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Finding the Fourth Proportional to 54,302.60, 81,672.60 and 48,616.40

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Solution

The fourth proportional to 54,302.60, 81,672.60 and 48,616.40 is: 73,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,302.60 : 81,672.60 = 48,616.40 : x
  2. Step 2: Convert to fraction form
    54,302.60/81,672.60 = 48,616.40/x
  3. Step 3: Cross multiply
    54,302.60x = 81,672.60 × 48,616.40
  4. Step 4: Simplify right side
    54,302.60x = 3,970,627,790.64
  5. Step 5: Solve for x
    x = 3,970,627,790.64/54,302.60
  6. Step 6: Final answer
    x = 73,120.40

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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.