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Finding the Fourth Proportional to 64,668.60, 96,903.82 and 43,530.44

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Solution

The fourth proportional to 64,668.60, 96,903.82 and 43,530.44 is: 65,228.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,668.60 : 96,903.82 = 43,530.44 : x
  2. Step 2: Convert to fraction form
    64,668.60/96,903.82 = 43,530.44/x
  3. Step 3: Cross multiply
    64,668.60x = 96,903.82 × 43,530.44
  4. Step 4: Simplify right side
    64,668.60x = 4,218,265,922.28
  5. Step 5: Solve for x
    x = 4,218,265,922.28/64,668.60
  6. Step 6: Final answer
    x = 65,228.97

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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.