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Finding the Fourth Proportional to 73,760.80, 110,728.94 and 70,753.04

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Solution

The fourth proportional to 73,760.80, 110,728.94 and 70,753.04 is: 106,213.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,760.80 : 110,728.94 = 70,753.04 : x
  2. Step 2: Convert to fraction form
    73,760.80/110,728.94 = 70,753.04/x
  3. Step 3: Cross multiply
    73,760.80x = 110,728.94 × 70,753.04
  4. Step 4: Simplify right side
    73,760.80x = 7,834,409,120.98
  5. Step 5: Solve for x
    x = 7,834,409,120.98/73,760.80
  6. Step 6: Final answer
    x = 106,213.72

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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.