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Finding the Fourth Proportional to 108,231.44, 149,262.69 and 67,948.96

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Solution

The fourth proportional to 108,231.44, 149,262.69 and 67,948.96 is: 93,708.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,231.44 : 149,262.69 = 67,948.96 : x
  2. Step 2: Convert to fraction form
    108,231.44/149,262.69 = 67,948.96/x
  3. Step 3: Cross multiply
    108,231.44x = 149,262.69 × 67,948.96
  4. Step 4: Simplify right side
    108,231.44x = 10,142,244,552.30
  5. Step 5: Solve for x
    x = 10,142,244,552.30/108,231.44
  6. Step 6: Final answer
    x = 93,708.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.