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Finding the Fourth Proportional to 134,753.60, 202,276.20 and 75,704.60

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Solution

The fourth proportional to 134,753.60, 202,276.20 and 75,704.60 is: 113,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,753.60 : 202,276.20 = 75,704.60 : x
  2. Step 2: Convert to fraction form
    134,753.60/202,276.20 = 75,704.60/x
  3. Step 3: Cross multiply
    134,753.60x = 202,276.20 × 75,704.60
  4. Step 4: Simplify right side
    134,753.60x = 15,313,238,810.52
  5. Step 5: Solve for x
    x = 15,313,238,810.52/134,753.60
  6. Step 6: Final answer
    x = 113,638.81

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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.