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Finding the Fourth Proportional to 139,799.70, 209,524.68 and 110,100.24

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Solution

The fourth proportional to 139,799.70, 209,524.68 and 110,100.24 is: 165,012.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,799.70 : 209,524.68 = 110,100.24 : x
  2. Step 2: Convert to fraction form
    139,799.70/209,524.68 = 110,100.24/x
  3. Step 3: Cross multiply
    139,799.70x = 209,524.68 × 110,100.24
  4. Step 4: Simplify right side
    139,799.70x = 23,068,717,553.92
  5. Step 5: Solve for x
    x = 23,068,717,553.92/139,799.70
  6. Step 6: Final answer
    x = 165,012.64

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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.