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Finding the Fourth Proportional to 139,994.46, 209,992.50 and 34,813.44

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Solution

The fourth proportional to 139,994.46, 209,992.50 and 34,813.44 is: 52,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,994.46 : 209,992.50 = 34,813.44 : x
  2. Step 2: Convert to fraction form
    139,994.46/209,992.50 = 34,813.44/x
  3. Step 3: Cross multiply
    139,994.46x = 209,992.50 × 34,813.44
  4. Step 4: Simplify right side
    139,994.46x = 7,310,561,299.20
  5. Step 5: Solve for x
    x = 7,310,561,299.20/139,994.46
  6. Step 6: Final answer
    x = 52,220.36

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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.