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Finding the Fourth Proportional to 74,494.44, 111,741.65 and 52,406.65

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Solution

The fourth proportional to 74,494.44, 111,741.65 and 52,406.65 is: 78,609.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,494.44 : 111,741.65 = 52,406.65 : x
  2. Step 2: Convert to fraction form
    74,494.44/111,741.65 = 52,406.65/x
  3. Step 3: Cross multiply
    74,494.44x = 111,741.65 × 52,406.65
  4. Step 4: Simplify right side
    74,494.44x = 5,856,005,541.97
  5. Step 5: Solve for x
    x = 5,856,005,541.97/74,494.44
  6. Step 6: Final answer
    x = 78,609.97

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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.