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Finding the Fourth Proportional to 73,932.40, 110,704.20 and 54,103.60

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Solution

The fourth proportional to 73,932.40, 110,704.20 and 54,103.60 is: 81,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,932.40 : 110,704.20 = 54,103.60 : x
  2. Step 2: Convert to fraction form
    73,932.40/110,704.20 = 54,103.60/x
  3. Step 3: Cross multiply
    73,932.40x = 110,704.20 × 54,103.60
  4. Step 4: Simplify right side
    73,932.40x = 5,989,495,755.12
  5. Step 5: Solve for x
    x = 5,989,495,755.12/73,932.40
  6. Step 6: Final answer
    x = 81,013.14

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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.