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Finding the Fourth Proportional to 69,245.52, 103,771.08 and 29,772.96

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Solution

The fourth proportional to 69,245.52, 103,771.08 and 29,772.96 is: 44,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,245.52 : 103,771.08 = 29,772.96 : x
  2. Step 2: Convert to fraction form
    69,245.52/103,771.08 = 29,772.96/x
  3. Step 3: Cross multiply
    69,245.52x = 103,771.08 × 29,772.96
  4. Step 4: Simplify right side
    69,245.52x = 3,089,572,214.00
  5. Step 5: Solve for x
    x = 3,089,572,214.00/69,245.52
  6. Step 6: Final answer
    x = 44,617.65

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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.