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Finding the Fourth Proportional to 112,096.44, 168,144.84 and 76,929.48

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Solution

The fourth proportional to 112,096.44, 168,144.84 and 76,929.48 is: 115,394.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,096.44 : 168,144.84 = 76,929.48 : x
  2. Step 2: Convert to fraction form
    112,096.44/168,144.84 = 76,929.48/x
  3. Step 3: Cross multiply
    112,096.44x = 168,144.84 × 76,929.48
  4. Step 4: Simplify right side
    112,096.44x = 12,935,295,105.88
  5. Step 5: Solve for x
    x = 12,935,295,105.88/112,096.44
  6. Step 6: Final answer
    x = 115,394.34

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1.5x scale

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.