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Finding the Fourth Proportional to 148,659.48, 205,150.22 and 80,676.47

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Solution

The fourth proportional to 148,659.48, 205,150.22 and 80,676.47 is: 111,333.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,659.48 : 205,150.22 = 80,676.47 : x
  2. Step 2: Convert to fraction form
    148,659.48/205,150.22 = 80,676.47/x
  3. Step 3: Cross multiply
    148,659.48x = 205,150.22 × 80,676.47
  4. Step 4: Simplify right side
    148,659.48x = 16,550,794,140.19
  5. Step 5: Solve for x
    x = 16,550,794,140.19/148,659.48
  6. Step 6: Final answer
    x = 111,333.59

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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.