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Finding the Fourth Proportional to 64,231.60, 96,217.80 and 44,532.40

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Solution

The fourth proportional to 64,231.60, 96,217.80 and 44,532.40 is: 66,708.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,231.60 : 96,217.80 = 44,532.40 : x
  2. Step 2: Convert to fraction form
    64,231.60/96,217.80 = 44,532.40/x
  3. Step 3: Cross multiply
    64,231.60x = 96,217.80 × 44,532.40
  4. Step 4: Simplify right side
    64,231.60x = 4,284,809,556.72
  5. Step 5: Solve for x
    x = 4,284,809,556.72/64,231.60
  6. Step 6: Final answer
    x = 66,708.75

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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.