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Finding the Fourth Proportional to 235,630.49, 353,457.42 and 67,175.64

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Solution

The fourth proportional to 235,630.49, 353,457.42 and 67,175.64 is: 100,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,630.49 : 353,457.42 = 67,175.64 : x
  2. Step 2: Convert to fraction form
    235,630.49/353,457.42 = 67,175.64/x
  3. Step 3: Cross multiply
    235,630.49x = 353,457.42 × 67,175.64
  4. Step 4: Simplify right side
    235,630.49x = 23,743,726,298.08
  5. Step 5: Solve for x
    x = 23,743,726,298.08/235,630.49
  6. Step 6: Final answer
    x = 100,766.78

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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.