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Finding the Fourth Proportional to 139,091.85, 208,637.78 and 33,911.73

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Solution

The fourth proportional to 139,091.85, 208,637.78 and 33,911.73 is: 50,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,091.85 : 208,637.78 = 33,911.73 : x
  2. Step 2: Convert to fraction form
    139,091.85/208,637.78 = 33,911.73/x
  3. Step 3: Cross multiply
    139,091.85x = 208,637.78 × 33,911.73
  4. Step 4: Simplify right side
    139,091.85x = 7,075,267,893.60
  5. Step 5: Solve for x
    x = 7,075,267,893.60/139,091.85
  6. Step 6: Final answer
    x = 50,867.60

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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.