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Finding the Fourth Proportional to 103,697.56, 155,606.72 and 43,722.27

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Solution

The fourth proportional to 103,697.56, 155,606.72 and 43,722.27 is: 65,608.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,697.56 : 155,606.72 = 43,722.27 : x
  2. Step 2: Convert to fraction form
    103,697.56/155,606.72 = 43,722.27/x
  3. Step 3: Cross multiply
    103,697.56x = 155,606.72 × 43,722.27
  4. Step 4: Simplify right side
    103,697.56x = 6,803,479,025.65
  5. Step 5: Solve for x
    x = 6,803,479,025.65/103,697.56
  6. Step 6: Final answer
    x = 65,608.86

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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.